21983175

素因数分解:

$3^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{2383}}^1$

素因数の和:2440

約数の個数: 36

約数和(自身を含む): 40351584

約数和(自身を除く): 18368409

約数列:

[1, 3, 5, 9, 15, 25, 41, 45, 75, 123, 205, 225, 369, 615, 1025, 1845, 2383, 3075, 7149, 9225, 11915, 21447, 35745, 59575, 97703, 107235, 178725, 293109, 488515, 536175, 879327, 1465545, 2442575, 4396635, 7327725, 21983175]

約数ペア:

[(1, 21983175), (3, 7327725), (5, 4396635), (9, 2442575), (15, 1465545), (25, 879327), (41, 536175), (45, 488515), (75, 293109), (123, 178725), (205, 107235), (225, 97703), (369, 59575), (615, 35745), (1025, 21447), (1845, 11915), (2383, 9225), (3075, 7149)]