20954829

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{743}}^1$

素因数の和:849

約数の個数: 32

約数和(自身を含む): 34283520

約数和(自身を除く): 13328691

約数列:

[1, 3, 7, 17, 21, 51, 79, 119, 237, 357, 553, 743, 1343, 1659, 2229, 4029, 5201, 9401, 12631, 15603, 28203, 37893, 58697, 88417, 176091, 265251, 410879, 997849, 1232637, 2993547, 6984943, 20954829]

約数ペア:

[(1, 20954829), (3, 6984943), (7, 2993547), (17, 1232637), (21, 997849), (51, 410879), (79, 265251), (119, 176091), (237, 88417), (357, 58697), (553, 37893), (743, 28203), (1343, 15603), (1659, 12631), (2229, 9401), (4029, 5201)]