18503792

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{421}}^1$

素因数の和:537

約数の個数: 40

約数和(自身を含む): 37362192

約数和(自身を除く): 18858400

約数列:

[1, 2, 4, 8, 16, 41, 67, 82, 134, 164, 268, 328, 421, 536, 656, 842, 1072, 1684, 2747, 3368, 5494, 6736, 10988, 17261, 21976, 28207, 34522, 43952, 56414, 69044, 112828, 138088, 225656, 276176, 451312, 1156487, 2312974, 4625948, 9251896, 18503792]

約数ペア:

[(1, 18503792), (2, 9251896), (4, 4625948), (8, 2312974), (16, 1156487), (41, 451312), (67, 276176), (82, 225656), (134, 138088), (164, 112828), (268, 69044), (328, 56414), (421, 43952), (536, 34522), (656, 28207), (842, 21976), (1072, 17261), (1684, 10988), (2747, 6736), (3368, 5494)]