20508078

素因数分解:

$2^1\times 3^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{409}}^1$

素因数の和:612

約数の個数: 32

約数和(自身を含む): 42095520

約数和(自身を除く): 21587442

約数列:

[1, 2, 3, 6, 61, 122, 137, 183, 274, 366, 409, 411, 818, 822, 1227, 2454, 8357, 16714, 24949, 25071, 49898, 50142, 56033, 74847, 112066, 149694, 168099, 336198, 3418013, 6836026, 10254039, 20508078]

約数ペア:

[(1, 20508078), (2, 10254039), (3, 6836026), (6, 3418013), (61, 336198), (122, 168099), (137, 149694), (183, 112066), (274, 74847), (366, 56033), (409, 50142), (411, 49898), (818, 25071), (822, 24949), (1227, 16714), (2454, 8357)]