21346730

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{631}}^1$

素因数の和:854

約数の個数: 32

約数和(自身を含む): 40953600

約数和(自身を除く): 19606870

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 199, 398, 631, 995, 1262, 1990, 3155, 3383, 6310, 6766, 10727, 16915, 21454, 33830, 53635, 107270, 125569, 251138, 627845, 1255690, 2134673, 4269346, 10673365, 21346730]

約数ペア:

[(1, 21346730), (2, 10673365), (5, 4269346), (10, 2134673), (17, 1255690), (34, 627845), (85, 251138), (170, 125569), (199, 107270), (398, 53635), (631, 33830), (995, 21454), (1262, 16915), (1990, 10727), (3155, 6766), (3383, 6310)]