21541497

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{167}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 31825920

約数和(自身を除く): 10284423

約数列:

[1, 3, 19, 31, 57, 73, 93, 167, 219, 501, 589, 1387, 1767, 2263, 3173, 4161, 5177, 6789, 9519, 12191, 15531, 36573, 42997, 98363, 128991, 231629, 295089, 377921, 694887, 1133763, 7180499, 21541497]

約数ペア:

[(1, 21541497), (3, 7180499), (19, 1133763), (31, 694887), (57, 377921), (73, 295089), (93, 231629), (167, 128991), (219, 98363), (501, 42997), (589, 36573), (1387, 15531), (1767, 12191), (2263, 9519), (3173, 6789), (4161, 5177)]