31378138

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{331}}^1$

素因数の和:514

約数の個数: 32

約数和(自身を含む): 53544960

約数和(自身を除く): 22166822

約数列:

[1, 2, 11, 22, 31, 62, 139, 278, 331, 341, 662, 682, 1529, 3058, 3641, 4309, 7282, 8618, 10261, 20522, 46009, 47399, 92018, 94798, 112871, 225742, 506099, 1012198, 1426279, 2852558, 15689069, 31378138]

約数ペア:

[(1, 31378138), (2, 15689069), (11, 2852558), (22, 1426279), (31, 1012198), (62, 506099), (139, 225742), (278, 112871), (331, 94798), (341, 92018), (662, 47399), (682, 46009), (1529, 20522), (3058, 10261), (3641, 8618), (4309, 7282)]