21257922

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1567}}^1$

素因数の和:1615

約数の個数: 64

約数和(自身を含む): 54190080

約数和(自身を除く): 32932158

約数列:

[1, 2, 3, 6, 7, 14, 17, 19, 21, 34, 38, 42, 51, 57, 102, 114, 119, 133, 238, 266, 323, 357, 399, 646, 714, 798, 969, 1567, 1938, 2261, 3134, 4522, 4701, 6783, 9402, 10969, 13566, 21938, 26639, 29773, 32907, 53278, 59546, 65814, 79917, 89319, 159834, 178638, 186473, 208411, 372946, 416822, 506141, 559419, 625233, 1012282, 1118838, 1250466, 1518423, 3036846, 3542987, 7085974, 10628961, 21257922]

約数ペア:

[(1, 21257922), (2, 10628961), (3, 7085974), (6, 3542987), (7, 3036846), (14, 1518423), (17, 1250466), (19, 1118838), (21, 1012282), (34, 625233), (38, 559419), (42, 506141), (51, 416822), (57, 372946), (102, 208411), (114, 186473), (119, 178638), (133, 159834), (238, 89319), (266, 79917), (323, 65814), (357, 59546), (399, 53278), (646, 32907), (714, 29773), (798, 26639), (969, 21938), (1567, 13566), (1938, 10969), (2261, 9402), (3134, 6783), (4522, 4701)]