21652125

素因数分解:

$3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1$

素因数の和:239

約数の個数: 64

約数和(自身を含む): 40884480

約数和(自身を除く): 19232355

約数列:

[1, 3, 5, 11, 15, 25, 29, 33, 55, 75, 87, 125, 145, 165, 181, 275, 319, 375, 435, 543, 725, 825, 905, 957, 1375, 1595, 1991, 2175, 2715, 3625, 4125, 4525, 4785, 5249, 5973, 7975, 9955, 10875, 13575, 15747, 22625, 23925, 26245, 29865, 39875, 49775, 57739, 67875, 78735, 119625, 131225, 149325, 173217, 248875, 288695, 393675, 656125, 746625, 866085, 1443475, 1968375, 4330425, 7217375, 21652125]

約数ペア:

[(1, 21652125), (3, 7217375), (5, 4330425), (11, 1968375), (15, 1443475), (25, 866085), (29, 746625), (33, 656125), (55, 393675), (75, 288695), (87, 248875), (125, 173217), (145, 149325), (165, 131225), (181, 119625), (275, 78735), (319, 67875), (375, 57739), (435, 49775), (543, 39875), (725, 29865), (825, 26245), (905, 23925), (957, 22625), (1375, 15747), (1595, 13575), (1991, 10875), (2175, 9955), (2715, 7975), (3625, 5973), (4125, 5249), (4525, 4785)]