21263910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1733}}^1$

素因数の和:2152

約数の個数: 32

約数和(自身を含む): 51187680

約数和(自身を除く): 29923770

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 409, 818, 1227, 1733, 2045, 2454, 3466, 4090, 5199, 6135, 8665, 10398, 12270, 17330, 25995, 51990, 708797, 1417594, 2126391, 3543985, 4252782, 7087970, 10631955, 21263910]

約数ペア:

[(1, 21263910), (2, 10631955), (3, 7087970), (5, 4252782), (6, 3543985), (10, 2126391), (15, 1417594), (30, 708797), (409, 51990), (818, 25995), (1227, 17330), (1733, 12270), (2045, 10398), (2454, 8665), (3466, 6135), (4090, 5199)]