19887504

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:217

約数の個数: 160

約数和(自身を含む): 65829120

約数和(自身を除く): 45941616

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 29, 39, 42, 48, 52, 56, 58, 78, 84, 87, 91, 104, 112, 116, 156, 157, 168, 174, 182, 203, 208, 232, 273, 312, 314, 336, 348, 364, 377, 406, 464, 471, 546, 609, 624, 628, 696, 728, 754, 812, 942, 1092, 1099, 1131, 1218, 1256, 1392, 1456, 1508, 1624, 1884, 2041, 2184, 2198, 2262, 2436, 2512, 2639, 3016, 3248, 3297, 3768, 4082, 4368, 4396, 4524, 4553, 4872, 5278, 6032, 6123, 6594, 7536, 7917, 8164, 8792, 9048, 9106, 9744, 10556, 12246, 13188, 13659, 14287, 15834, 16328, 17584, 18096, 18212, 21112, 24492, 26376, 27318, 28574, 31668, 31871, 32656, 36424, 42224, 42861, 48984, 52752, 54636, 57148, 59189, 63336, 63742, 72848, 85722, 95613, 97968, 109272, 114296, 118378, 126672, 127484, 171444, 177567, 191226, 218544, 228592, 236756, 254968, 342888, 355134, 382452, 414323, 473512, 509936, 685776, 710268, 764904, 828646, 947024, 1242969, 1420536, 1529808, 1657292, 2485938, 2841072, 3314584, 4971876, 6629168, 9943752, 19887504]

約数ペア:

[(1, 19887504), (2, 9943752), (3, 6629168), (4, 4971876), (6, 3314584), (7, 2841072), (8, 2485938), (12, 1657292), (13, 1529808), (14, 1420536), (16, 1242969), (21, 947024), (24, 828646), (26, 764904), (28, 710268), (29, 685776), (39, 509936), (42, 473512), (48, 414323), (52, 382452), (56, 355134), (58, 342888), (78, 254968), (84, 236756), (87, 228592), (91, 218544), (104, 191226), (112, 177567), (116, 171444), (156, 127484), (157, 126672), (168, 118378), (174, 114296), (182, 109272), (203, 97968), (208, 95613), (232, 85722), (273, 72848), (312, 63742), (314, 63336), (336, 59189), (348, 57148), (364, 54636), (377, 52752), (406, 48984), (464, 42861), (471, 42224), (546, 36424), (609, 32656), (624, 31871), (628, 31668), (696, 28574), (728, 27318), (754, 26376), (812, 24492), (942, 21112), (1092, 18212), (1099, 18096), (1131, 17584), (1218, 16328), (1256, 15834), (1392, 14287), (1456, 13659), (1508, 13188), (1624, 12246), (1884, 10556), (2041, 9744), (2184, 9106), (2198, 9048), (2262, 8792), (2436, 8164), (2512, 7917), (2639, 7536), (3016, 6594), (3248, 6123), (3297, 6032), (3768, 5278), (4082, 4872), (4368, 4553), (4396, 4524)]