206821964

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{389}}^1\times {\mathrm{2179}}^1$

素因数の和:2633

約数の個数: 24

約数和(自身を含む): 368986800

約数和(自身を除く): 162164836

約数列:

[1, 2, 4, 61, 122, 244, 389, 778, 1556, 2179, 4358, 8716, 23729, 47458, 94916, 132919, 265838, 531676, 847631, 1695262, 3390524, 51705491, 103410982, 206821964]

約数ペア:

[(1, 206821964), (2, 103410982), (4, 51705491), (61, 3390524), (122, 1695262), (244, 847631), (389, 531676), (778, 265838), (1556, 132919), (2179, 94916), (4358, 47458), (8716, 23729)]