21826545

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{647}}^1$

素因数の和:841

約数の個数: 32

約数和(自身を含む): 37884672

約数和(自身を除く): 16058127

約数列:

[1, 3, 5, 13, 15, 39, 65, 173, 195, 519, 647, 865, 1941, 2249, 2595, 3235, 6747, 8411, 9705, 11245, 25233, 33735, 42055, 111931, 126165, 335793, 559655, 1455103, 1678965, 4365309, 7275515, 21826545]

約数ペア:

[(1, 21826545), (3, 7275515), (5, 4365309), (13, 1678965), (15, 1455103), (39, 559655), (65, 335793), (173, 126165), (195, 111931), (519, 42055), (647, 33735), (865, 25233), (1941, 11245), (2249, 9705), (2595, 8411), (3235, 6747)]