2105271

素因数分解:

$3^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:145

約数の個数: 40

約数和(自身を含む): 3717120

約数和(自身を除く): 1611849

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 79, 81, 141, 189, 237, 329, 423, 553, 567, 711, 987, 1269, 1659, 2133, 2961, 3713, 3807, 4977, 6399, 8883, 11139, 14931, 25991, 26649, 33417, 44793, 77973, 100251, 233919, 300753, 701757, 2105271]

約数ペア:

[(1, 2105271), (3, 701757), (7, 300753), (9, 233919), (21, 100251), (27, 77973), (47, 44793), (63, 33417), (79, 26649), (81, 25991), (141, 14931), (189, 11139), (237, 8883), (329, 6399), (423, 4977), (553, 3807), (567, 3713), (711, 2961), (987, 2133), (1269, 1659)]