21152216

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3617}}^1$

素因数の和:3683

約数の個数: 32

約数和(自身を含む): 42981840

約数和(自身を除く): 21829624

約数列:

[1, 2, 4, 8, 17, 34, 43, 68, 86, 136, 172, 344, 731, 1462, 2924, 3617, 5848, 7234, 14468, 28936, 61489, 122978, 155531, 245956, 311062, 491912, 622124, 1244248, 2644027, 5288054, 10576108, 21152216]

約数ペア:

[(1, 21152216), (2, 10576108), (4, 5288054), (8, 2644027), (17, 1244248), (34, 622124), (43, 491912), (68, 311062), (86, 245956), (136, 155531), (172, 122978), (344, 61489), (731, 28936), (1462, 14468), (2924, 7234), (3617, 5848)]