21402864

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1249}}^1$

素因数の和:1287

約数の個数: 120

約数和(自身を含む): 72540000

約数和(自身を除く): 51137136

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 28, 34, 36, 42, 48, 51, 56, 63, 68, 72, 84, 102, 112, 119, 126, 136, 144, 153, 168, 204, 238, 252, 272, 306, 336, 357, 408, 476, 504, 612, 714, 816, 952, 1008, 1071, 1224, 1249, 1428, 1904, 2142, 2448, 2498, 2856, 3747, 4284, 4996, 5712, 7494, 8568, 8743, 9992, 11241, 14988, 17136, 17486, 19984, 21233, 22482, 26229, 29976, 34972, 42466, 44964, 52458, 59952, 63699, 69944, 78687, 84932, 89928, 104916, 127398, 139888, 148631, 157374, 169864, 179856, 191097, 209832, 254796, 297262, 314748, 339728, 382194, 419664, 445893, 509592, 594524, 629496, 764388, 891786, 1019184, 1189048, 1258992, 1337679, 1528776, 1783572, 2378096, 2675358, 3057552, 3567144, 5350716, 7134288, 10701432, 21402864]

約数ペア:

[(1, 21402864), (2, 10701432), (3, 7134288), (4, 5350716), (6, 3567144), (7, 3057552), (8, 2675358), (9, 2378096), (12, 1783572), (14, 1528776), (16, 1337679), (17, 1258992), (18, 1189048), (21, 1019184), (24, 891786), (28, 764388), (34, 629496), (36, 594524), (42, 509592), (48, 445893), (51, 419664), (56, 382194), (63, 339728), (68, 314748), (72, 297262), (84, 254796), (102, 209832), (112, 191097), (119, 179856), (126, 169864), (136, 157374), (144, 148631), (153, 139888), (168, 127398), (204, 104916), (238, 89928), (252, 84932), (272, 78687), (306, 69944), (336, 63699), (357, 59952), (408, 52458), (476, 44964), (504, 42466), (612, 34972), (714, 29976), (816, 26229), (952, 22482), (1008, 21233), (1071, 19984), (1224, 17486), (1249, 17136), (1428, 14988), (1904, 11241), (2142, 9992), (2448, 8743), (2498, 8568), (2856, 7494), (3747, 5712), (4284, 4996)]