18971872

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{173}}^1$

素因数の和:355

約数の個数: 48

約数和(自身を含む): 39463200

約数和(自身を除く): 20491328

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 149, 173, 184, 298, 346, 368, 596, 692, 736, 1192, 1384, 2384, 2768, 3427, 3979, 4768, 5536, 6854, 7958, 13708, 15916, 25777, 27416, 31832, 51554, 54832, 63664, 103108, 109664, 127328, 206216, 412432, 592871, 824864, 1185742, 2371484, 4742968, 9485936, 18971872]

約数ペア:

[(1, 18971872), (2, 9485936), (4, 4742968), (8, 2371484), (16, 1185742), (23, 824864), (32, 592871), (46, 412432), (92, 206216), (149, 127328), (173, 109664), (184, 103108), (298, 63664), (346, 54832), (368, 51554), (596, 31832), (692, 27416), (736, 25777), (1192, 15916), (1384, 13708), (2384, 7958), (2768, 6854), (3427, 5536), (3979, 4768)]