21638625

素因数分解:

$3^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{3037}}^1$

素因数の和:3074

約数の個数: 32

約数和(自身を含む): 37914240

約数和(自身を除く): 16275615

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 125, 285, 375, 475, 1425, 2375, 3037, 7125, 9111, 15185, 45555, 57703, 75925, 173109, 227775, 288515, 379625, 865545, 1138875, 1442575, 4327725, 7212875, 21638625]

約数ペア:

[(1, 21638625), (3, 7212875), (5, 4327725), (15, 1442575), (19, 1138875), (25, 865545), (57, 379625), (75, 288515), (95, 227775), (125, 173109), (285, 75925), (375, 57703), (475, 45555), (1425, 15185), (2375, 9111), (3037, 7125)]