21520844

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{16657}}^1$

素因数の和:16697

約数の個数: 24

約数和(自身を含む): 41978160

約数和(自身を除く): 20457316

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 646, 1292, 16657, 33314, 66628, 283169, 316483, 566338, 632966, 1132676, 1265932, 5380211, 10760422, 21520844]

約数ペア:

[(1, 21520844), (2, 10760422), (4, 5380211), (17, 1265932), (19, 1132676), (34, 632966), (38, 566338), (68, 316483), (76, 283169), (323, 66628), (646, 33314), (1292, 16657)]