20198997

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8221}}^1$

素因数の和:8250

約数の個数: 32

約数和(自身を含む): 36834560

約数和(自身を除く): 16635563

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 8221, 24663, 57547, 73989, 106873, 172641, 221967, 320619, 517923, 748111, 961857, 1553769, 2244333, 2885571, 6732999, 20198997]

約数ペア:

[(1, 20198997), (3, 6732999), (7, 2885571), (9, 2244333), (13, 1553769), (21, 961857), (27, 748111), (39, 517923), (63, 320619), (91, 221967), (117, 172641), (189, 106873), (273, 73989), (351, 57547), (819, 24663), (2457, 8221)]