21259708

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{467}}^1\times {\mathrm{599}}^1$

素因数の和:1089

約数の個数: 24

約数和(自身を含む): 39312000

約数和(自身を除く): 18052292

約数列:

[1, 2, 4, 19, 38, 76, 467, 599, 934, 1198, 1868, 2396, 8873, 11381, 17746, 22762, 35492, 45524, 279733, 559466, 1118932, 5314927, 10629854, 21259708]

約数ペア:

[(1, 21259708), (2, 10629854), (4, 5314927), (19, 1118932), (38, 559466), (76, 279733), (467, 45524), (599, 35492), (934, 22762), (1198, 17746), (1868, 11381), (2396, 8873)]