18943312

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{431}}^1$

素因数の和:547

約数の個数: 40

約数和(自身を含む): 38247552

約数和(自身を除く): 19304240

約数列:

[1, 2, 4, 8, 16, 41, 67, 82, 134, 164, 268, 328, 431, 536, 656, 862, 1072, 1724, 2747, 3448, 5494, 6896, 10988, 17671, 21976, 28877, 35342, 43952, 57754, 70684, 115508, 141368, 231016, 282736, 462032, 1183957, 2367914, 4735828, 9471656, 18943312]

約数ペア:

[(1, 18943312), (2, 9471656), (4, 4735828), (8, 2367914), (16, 1183957), (41, 462032), (67, 282736), (82, 231016), (134, 141368), (164, 115508), (268, 70684), (328, 57754), (431, 43952), (536, 35342), (656, 28877), (862, 21976), (1072, 17671), (1724, 10988), (2747, 6896), (3448, 5494)]