20447406

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{97}}^1\times {\mathrm{239}}^1$

素因数の和:358

約数の個数: 72

約数和(自身を含む): 52284960

約数和(自身を除く): 31837554

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 97, 98, 126, 147, 194, 239, 291, 294, 441, 478, 582, 679, 717, 873, 882, 1358, 1434, 1673, 1746, 2037, 2151, 3346, 4074, 4302, 4753, 5019, 6111, 9506, 10038, 11711, 12222, 14259, 15057, 23183, 23422, 28518, 30114, 35133, 42777, 46366, 69549, 70266, 85554, 105399, 139098, 162281, 208647, 210798, 324562, 417294, 486843, 973686, 1135967, 1460529, 2271934, 2921058, 3407901, 6815802, 10223703, 20447406]

約数ペア:

[(1, 20447406), (2, 10223703), (3, 6815802), (6, 3407901), (7, 2921058), (9, 2271934), (14, 1460529), (18, 1135967), (21, 973686), (42, 486843), (49, 417294), (63, 324562), (97, 210798), (98, 208647), (126, 162281), (147, 139098), (194, 105399), (239, 85554), (291, 70266), (294, 69549), (441, 46366), (478, 42777), (582, 35133), (679, 30114), (717, 28518), (873, 23422), (882, 23183), (1358, 15057), (1434, 14259), (1673, 12222), (1746, 11711), (2037, 10038), (2151, 9506), (3346, 6111), (4074, 5019), (4302, 4753)]