209790399

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{18743}}^1$

素因数の和:18807

約数の個数: 32

約数和(自身を含む): 352687104

約数和(自身を除く): 142896705

約数列:

[1, 3, 7, 13, 21, 39, 41, 91, 123, 273, 287, 533, 861, 1599, 3731, 11193, 18743, 56229, 131201, 243659, 393603, 730977, 768463, 1705613, 2305389, 5116839, 5379241, 9990019, 16137723, 29970057, 69930133, 209790399]

約数ペア:

[(1, 209790399), (3, 69930133), (7, 29970057), (13, 16137723), (21, 9990019), (39, 5379241), (41, 5116839), (91, 2305389), (123, 1705613), (273, 768463), (287, 730977), (533, 393603), (861, 243659), (1599, 131201), (3731, 56229), (11193, 18743)]