20705308

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{1297}}^1$

素因数の和:1621

約数の個数: 24

約数和(自身を含む): 39178832

約数和(自身を除く): 18473524

約数列:

[1, 2, 4, 13, 26, 52, 307, 614, 1228, 1297, 2594, 3991, 5188, 7982, 15964, 16861, 33722, 67444, 398179, 796358, 1592716, 5176327, 10352654, 20705308]

約数ペア:

[(1, 20705308), (2, 10352654), (4, 5176327), (13, 1592716), (26, 796358), (52, 398179), (307, 67444), (614, 33722), (1228, 16861), (1297, 15964), (2594, 7982), (3991, 5188)]