217586159

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{491}}^1$

素因数の和:623

約数の個数: 32

約数和(自身を含む): 269222400

約数和(自身を除く): 51636241

約数列:

[1, 7, 29, 37, 59, 203, 259, 413, 491, 1073, 1711, 2183, 3437, 7511, 11977, 14239, 15281, 18167, 28969, 63307, 99673, 127169, 202783, 443149, 526843, 840101, 1071853, 3687901, 5880707, 7502971, 31083737, 217586159]

約数ペア:

[(1, 217586159), (7, 31083737), (29, 7502971), (37, 5880707), (59, 3687901), (203, 1071853), (259, 840101), (413, 526843), (491, 443149), (1073, 202783), (1711, 127169), (2183, 99673), (3437, 63307), (7511, 28969), (11977, 18167), (14239, 15281)]