19961256

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{907}}^1$

素因数の和:1054

約数の個数: 64

約数和(自身を含む): 57530880

約数和(自身を除く): 37569624

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 131, 168, 262, 393, 524, 786, 907, 917, 1048, 1572, 1814, 1834, 2721, 2751, 3144, 3628, 3668, 5442, 5502, 6349, 7256, 7336, 10884, 11004, 12698, 19047, 21768, 22008, 25396, 38094, 50792, 76188, 118817, 152376, 237634, 356451, 475268, 712902, 831719, 950536, 1425804, 1663438, 2495157, 2851608, 3326876, 4990314, 6653752, 9980628, 19961256]

約数ペア:

[(1, 19961256), (2, 9980628), (3, 6653752), (4, 4990314), (6, 3326876), (7, 2851608), (8, 2495157), (12, 1663438), (14, 1425804), (21, 950536), (24, 831719), (28, 712902), (42, 475268), (56, 356451), (84, 237634), (131, 152376), (168, 118817), (262, 76188), (393, 50792), (524, 38094), (786, 25396), (907, 22008), (917, 21768), (1048, 19047), (1572, 12698), (1814, 11004), (1834, 10884), (2721, 7336), (2751, 7256), (3144, 6349), (3628, 5502), (3668, 5442)]