21020688

素因数分解:

$2^4\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:246

約数の個数: 160

約数和(自身を含む): 68745600

約数和(自身を除く): 47724912

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 19, 24, 26, 27, 36, 38, 39, 48, 52, 54, 57, 72, 76, 78, 104, 108, 114, 117, 144, 152, 156, 171, 197, 208, 216, 228, 234, 247, 304, 312, 342, 351, 394, 432, 456, 468, 494, 513, 591, 624, 684, 702, 741, 788, 912, 936, 988, 1026, 1182, 1368, 1404, 1482, 1576, 1773, 1872, 1976, 2052, 2223, 2364, 2561, 2736, 2808, 2964, 3152, 3546, 3743, 3952, 4104, 4446, 4728, 5122, 5319, 5616, 5928, 6669, 7092, 7486, 7683, 8208, 8892, 9456, 10244, 10638, 11229, 11856, 13338, 14184, 14972, 15366, 17784, 20488, 21276, 22458, 23049, 26676, 28368, 29944, 30732, 33687, 35568, 40976, 42552, 44916, 46098, 48659, 53352, 59888, 61464, 67374, 69147, 85104, 89832, 92196, 97318, 101061, 106704, 122928, 134748, 138294, 145977, 179664, 184392, 194636, 202122, 269496, 276588, 291954, 368784, 389272, 404244, 437931, 538992, 553176, 583908, 778544, 808488, 875862, 1106352, 1167816, 1313793, 1616976, 1751724, 2335632, 2627586, 3503448, 5255172, 7006896, 10510344, 21020688]

約数ペア:

[(1, 21020688), (2, 10510344), (3, 7006896), (4, 5255172), (6, 3503448), (8, 2627586), (9, 2335632), (12, 1751724), (13, 1616976), (16, 1313793), (18, 1167816), (19, 1106352), (24, 875862), (26, 808488), (27, 778544), (36, 583908), (38, 553176), (39, 538992), (48, 437931), (52, 404244), (54, 389272), (57, 368784), (72, 291954), (76, 276588), (78, 269496), (104, 202122), (108, 194636), (114, 184392), (117, 179664), (144, 145977), (152, 138294), (156, 134748), (171, 122928), (197, 106704), (208, 101061), (216, 97318), (228, 92196), (234, 89832), (247, 85104), (304, 69147), (312, 67374), (342, 61464), (351, 59888), (394, 53352), (432, 48659), (456, 46098), (468, 44916), (494, 42552), (513, 40976), (591, 35568), (624, 33687), (684, 30732), (702, 29944), (741, 28368), (788, 26676), (912, 23049), (936, 22458), (988, 21276), (1026, 20488), (1182, 17784), (1368, 15366), (1404, 14972), (1482, 14184), (1576, 13338), (1773, 11856), (1872, 11229), (1976, 10638), (2052, 10244), (2223, 9456), (2364, 8892), (2561, 8208), (2736, 7683), (2808, 7486), (2964, 7092), (3152, 6669), (3546, 5928), (3743, 5616), (3952, 5319), (4104, 5122), (4446, 4728)]