20021295

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4057}}^1$

素因数の和:4119

約数の個数: 32

約数和(自身を含む): 37398528

約数和(自身を除く): 17377233

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 105, 141, 235, 329, 705, 987, 1645, 4057, 4935, 12171, 20285, 28399, 60855, 85197, 141995, 190679, 425985, 572037, 953395, 1334753, 2860185, 4004259, 6673765, 20021295]

約数ペア:

[(1, 20021295), (3, 6673765), (5, 4004259), (7, 2860185), (15, 1334753), (21, 953395), (35, 572037), (47, 425985), (105, 190679), (141, 141995), (235, 85197), (329, 60855), (705, 28399), (987, 20285), (1645, 12171), (4057, 4935)]