213241491

素因数分解:

$3^5\times {\mathrm{47}}^1\times {\mathrm{18671}}^1$

素因数の和:18733

約数の個数: 24

約数和(自身を含む): 326237184

約数和(自身を除く): 112995693

約数列:

[1, 3, 9, 27, 47, 81, 141, 243, 423, 1269, 3807, 11421, 18671, 56013, 168039, 504117, 877537, 1512351, 2632611, 4537053, 7897833, 23693499, 71080497, 213241491]

約数ペア:

[(1, 213241491), (3, 71080497), (9, 23693499), (27, 7897833), (47, 4537053), (81, 2632611), (141, 1512351), (243, 877537), (423, 504117), (1269, 168039), (3807, 56013), (11421, 18671)]