21705974

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{677}}^1$

素因数の和:760

約数の個数: 32

約数和(自身を含む): 36904896

約数和(自身を除く): 15198922

約数列:

[1, 2, 17, 23, 34, 41, 46, 82, 391, 677, 697, 782, 943, 1354, 1394, 1886, 11509, 15571, 16031, 23018, 27757, 31142, 32062, 55514, 264707, 471869, 529414, 638411, 943738, 1276822, 10852987, 21705974]

約数ペア:

[(1, 21705974), (2, 10852987), (17, 1276822), (23, 943738), (34, 638411), (41, 529414), (46, 471869), (82, 264707), (391, 55514), (677, 32062), (697, 31142), (782, 27757), (943, 23018), (1354, 16031), (1394, 15571), (1886, 11509)]