18936688

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:361

約数の個数: 40

約数和(自身を含む): 37885968

約数和(自身を除く): 18949280

約数列:

[1, 2, 4, 8, 16, 53, 106, 137, 163, 212, 274, 326, 424, 548, 652, 848, 1096, 1304, 2192, 2608, 7261, 8639, 14522, 17278, 22331, 29044, 34556, 44662, 58088, 69112, 89324, 116176, 138224, 178648, 357296, 1183543, 2367086, 4734172, 9468344, 18936688]

約数ペア:

[(1, 18936688), (2, 9468344), (4, 4734172), (8, 2367086), (16, 1183543), (53, 357296), (106, 178648), (137, 138224), (163, 116176), (212, 89324), (274, 69112), (326, 58088), (424, 44662), (548, 34556), (652, 29044), (848, 22331), (1096, 17278), (1304, 14522), (2192, 8639), (2608, 7261)]