18223456

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{241}}^1$

素因数の和:407

約数の個数: 48

約数和(自身を含む): 38419920

約数和(自身を除く): 20196464

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 139, 241, 272, 278, 482, 544, 556, 964, 1112, 1928, 2224, 2363, 3856, 4097, 4448, 4726, 7712, 8194, 9452, 16388, 18904, 32776, 33499, 37808, 65552, 66998, 75616, 131104, 133996, 267992, 535984, 569483, 1071968, 1138966, 2277932, 4555864, 9111728, 18223456]

約数ペア:

[(1, 18223456), (2, 9111728), (4, 4555864), (8, 2277932), (16, 1138966), (17, 1071968), (32, 569483), (34, 535984), (68, 267992), (136, 133996), (139, 131104), (241, 75616), (272, 66998), (278, 65552), (482, 37808), (544, 33499), (556, 32776), (964, 18904), (1112, 16388), (1928, 9452), (2224, 8194), (2363, 7712), (3856, 4726), (4097, 4448)]