21367875

素因数分解:

$3^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{2999}}^1$

素因数の和:3036

約数の個数: 32

約数和(自身を含む): 37440000

約数和(自身を除く): 16072125

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 125, 285, 375, 475, 1425, 2375, 2999, 7125, 8997, 14995, 44985, 56981, 74975, 170943, 224925, 284905, 374875, 854715, 1124625, 1424525, 4273575, 7122625, 21367875]

約数ペア:

[(1, 21367875), (3, 7122625), (5, 4273575), (15, 1424525), (19, 1124625), (25, 854715), (57, 374875), (75, 284905), (95, 224925), (125, 170943), (285, 74975), (375, 56981), (475, 44985), (1425, 14995), (2375, 8997), (2999, 7125)]