21869228

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{12511}}^1$

素因数の和:12557

約数の個数: 24

約数和(自身を含む): 42040320

約数和(自身を除く): 20171092

約数列:

[1, 2, 4, 19, 23, 38, 46, 76, 92, 437, 874, 1748, 12511, 25022, 50044, 237709, 287753, 475418, 575506, 950836, 1151012, 5467307, 10934614, 21869228]

約数ペア:

[(1, 21869228), (2, 10934614), (4, 5467307), (19, 1151012), (23, 950836), (38, 575506), (46, 475418), (76, 287753), (92, 237709), (437, 50044), (874, 25022), (1748, 12511)]