21209156620

素因数分解:

$2^2\times 5^1\times {\mathrm{3677}}^1\times {\mathrm{288403}}^1$

素因数の和:292089

約数の個数: 24

約数和(自身を含む): 44551496304

約数和(自身を除く): 23342339684

約数列:

[1, 2, 4, 5, 10, 20, 3677, 7354, 14708, 18385, 36770, 73540, 288403, 576806, 1153612, 1442015, 2884030, 5768060, 1060457831, 2120915662, 4241831324, 5302289155, 10604578310, 21209156620]

約数ペア:

[(1, 21209156620), (2, 10604578310), (4, 5302289155), (5, 4241831324), (10, 2120915662), (20, 1060457831), (3677, 5768060), (7354, 2884030), (14708, 1442015), (18385, 1153612), (36770, 576806), (73540, 288403)]