20639448

素因数分解:

$2^3\times 3^6\times {\mathrm{3539}}^1$

素因数の和:3563

約数の個数: 56

約数和(自身を含む): 58038300

約数和(自身を除く): 37398852

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 243, 324, 486, 648, 729, 972, 1458, 1944, 2916, 3539, 5832, 7078, 10617, 14156, 21234, 28312, 31851, 42468, 63702, 84936, 95553, 127404, 191106, 254808, 286659, 382212, 573318, 764424, 859977, 1146636, 1719954, 2293272, 2579931, 3439908, 5159862, 6879816, 10319724, 20639448]

約数ペア:

[(1, 20639448), (2, 10319724), (3, 6879816), (4, 5159862), (6, 3439908), (8, 2579931), (9, 2293272), (12, 1719954), (18, 1146636), (24, 859977), (27, 764424), (36, 573318), (54, 382212), (72, 286659), (81, 254808), (108, 191106), (162, 127404), (216, 95553), (243, 84936), (324, 63702), (486, 42468), (648, 31851), (729, 28312), (972, 21234), (1458, 14156), (1944, 10617), (2916, 7078), (3539, 5832)]