18239390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{811}}^1$

素因数の和:1004

約数の個数: 32

約数和(自身を含む): 35604576

約数和(自身を除く): 17365186

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 173, 346, 811, 865, 1622, 1730, 2249, 4055, 4498, 8110, 10543, 11245, 21086, 22490, 52715, 105430, 140303, 280606, 701515, 1403030, 1823939, 3647878, 9119695, 18239390]

約数ペア:

[(1, 18239390), (2, 9119695), (5, 3647878), (10, 1823939), (13, 1403030), (26, 701515), (65, 280606), (130, 140303), (173, 105430), (346, 52715), (811, 22490), (865, 21086), (1622, 11245), (1730, 10543), (2249, 8110), (4055, 4498)]