21499250

素因数分解:

$2^1\times 5^3\times {\mathrm{23}}^1\times {\mathrm{3739}}^1$

素因数の和:3779

約数の個数: 32

約数和(自身を含む): 42007680

約数和(自身を除く): 20508430

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 115, 125, 230, 250, 575, 1150, 2875, 3739, 5750, 7478, 18695, 37390, 85997, 93475, 171994, 186950, 429985, 467375, 859970, 934750, 2149925, 4299850, 10749625, 21499250]

約数ペア:

[(1, 21499250), (2, 10749625), (5, 4299850), (10, 2149925), (23, 934750), (25, 859970), (46, 467375), (50, 429985), (115, 186950), (125, 171994), (230, 93475), (250, 85997), (575, 37390), (1150, 18695), (2875, 7478), (3739, 5750)]