21294585

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{409}}^1$

素因数の和:522

約数の個数: 48

約数和(自身を含む): 40294800

約数和(自身を除く): 19000215

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 89, 117, 195, 267, 409, 445, 585, 801, 1157, 1227, 1335, 2045, 3471, 3681, 4005, 5317, 5785, 6135, 10413, 15951, 17355, 18405, 26585, 36401, 47853, 52065, 79755, 109203, 182005, 239265, 327609, 473213, 546015, 1419639, 1638045, 2366065, 4258917, 7098195, 21294585]

約数ペア:

[(1, 21294585), (3, 7098195), (5, 4258917), (9, 2366065), (13, 1638045), (15, 1419639), (39, 546015), (45, 473213), (65, 327609), (89, 239265), (117, 182005), (195, 109203), (267, 79755), (409, 52065), (445, 47853), (585, 36401), (801, 26585), (1157, 18405), (1227, 17355), (1335, 15951), (2045, 10413), (3471, 6135), (3681, 5785), (4005, 5317)]