19775584

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{277}}^1$

素因数の和:407

約数の個数: 48

約数和(自身を含む): 41192928

約数和(自身を除く): 21417344

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 97, 184, 194, 277, 368, 388, 554, 736, 776, 1108, 1552, 2216, 2231, 3104, 4432, 4462, 6371, 8864, 8924, 12742, 17848, 25484, 26869, 35696, 50968, 53738, 71392, 101936, 107476, 203872, 214952, 429904, 617987, 859808, 1235974, 2471948, 4943896, 9887792, 19775584]

約数ペア:

[(1, 19775584), (2, 9887792), (4, 4943896), (8, 2471948), (16, 1235974), (23, 859808), (32, 617987), (46, 429904), (92, 214952), (97, 203872), (184, 107476), (194, 101936), (277, 71392), (368, 53738), (388, 50968), (554, 35696), (736, 26869), (776, 25484), (1108, 17848), (1552, 12742), (2216, 8924), (2231, 8864), (3104, 6371), (4432, 4462)]