21921564

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{8999}}^1$

素因数の和:9042

約数の個数: 48

約数和(自身を含む): 60480000

約数和(自身を除く): 38558436

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 29, 42, 58, 84, 87, 116, 174, 203, 348, 406, 609, 812, 1218, 2436, 8999, 17998, 26997, 35996, 53994, 62993, 107988, 125986, 188979, 251972, 260971, 377958, 521942, 755916, 782913, 1043884, 1565826, 1826797, 3131652, 3653594, 5480391, 7307188, 10960782, 21921564]

約数ペア:

[(1, 21921564), (2, 10960782), (3, 7307188), (4, 5480391), (6, 3653594), (7, 3131652), (12, 1826797), (14, 1565826), (21, 1043884), (28, 782913), (29, 755916), (42, 521942), (58, 377958), (84, 260971), (87, 251972), (116, 188979), (174, 125986), (203, 107988), (348, 62993), (406, 53994), (609, 35996), (812, 26997), (1218, 17998), (2436, 8999)]