209875897

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{6971}}^1$

素因数の和:7029

約数の個数: 32

約数和(自身を含む): 289142784

約数和(自身を除く): 79266887

約数列:

[1, 7, 11, 17, 23, 77, 119, 161, 187, 253, 391, 1309, 1771, 2737, 4301, 6971, 30107, 48797, 76681, 118507, 160333, 536767, 829549, 1122331, 1303577, 1763663, 2725661, 9125039, 12345641, 19079627, 29982271, 209875897]

約数ペア:

[(1, 209875897), (7, 29982271), (11, 19079627), (17, 12345641), (23, 9125039), (77, 2725661), (119, 1763663), (161, 1303577), (187, 1122331), (253, 829549), (391, 536767), (1309, 160333), (1771, 118507), (2737, 76681), (4301, 48797), (6971, 30107)]