21340984

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{773}}^1$

素因数の和:832

約数の個数: 64

約数和(自身を含む): 50155200

約数和(自身を除く): 28814216

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 29, 34, 56, 58, 68, 116, 119, 136, 203, 232, 238, 406, 476, 493, 773, 812, 952, 986, 1546, 1624, 1972, 3092, 3451, 3944, 5411, 6184, 6902, 10822, 13141, 13804, 21644, 22417, 26282, 27608, 43288, 44834, 52564, 89668, 91987, 105128, 156919, 179336, 183974, 313838, 367948, 381089, 627676, 735896, 762178, 1255352, 1524356, 2667623, 3048712, 5335246, 10670492, 21340984]

約数ペア:

[(1, 21340984), (2, 10670492), (4, 5335246), (7, 3048712), (8, 2667623), (14, 1524356), (17, 1255352), (28, 762178), (29, 735896), (34, 627676), (56, 381089), (58, 367948), (68, 313838), (116, 183974), (119, 179336), (136, 156919), (203, 105128), (232, 91987), (238, 89668), (406, 52564), (476, 44834), (493, 43288), (773, 27608), (812, 26282), (952, 22417), (986, 21644), (1546, 13804), (1624, 13141), (1972, 10822), (3092, 6902), (3451, 6184), (3944, 5411)]