21589516

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{227}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 42900480

約数和(自身を除く): 21310964

約数列:

[1, 2, 4, 13, 26, 31, 52, 59, 62, 118, 124, 227, 236, 403, 454, 767, 806, 908, 1534, 1612, 1829, 2951, 3068, 3658, 5902, 7037, 7316, 11804, 13393, 14074, 23777, 26786, 28148, 47554, 53572, 91481, 95108, 174109, 182962, 348218, 365924, 415183, 696436, 830366, 1660732, 5397379, 10794758, 21589516]

約数ペア:

[(1, 21589516), (2, 10794758), (4, 5397379), (13, 1660732), (26, 830366), (31, 696436), (52, 415183), (59, 365924), (62, 348218), (118, 182962), (124, 174109), (227, 95108), (236, 91481), (403, 53572), (454, 47554), (767, 28148), (806, 26786), (908, 23777), (1534, 14074), (1612, 13393), (1829, 11804), (2951, 7316), (3068, 7037), (3658, 5902)]