15721865991

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{4976849}}^1$

素因数の和:4976877

約数の個数: 24

約数和(自身を含む): 25362027600

約数和(自身を除く): 9640161609

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 1053, 3159, 4976849, 14930547, 44791641, 64699037, 134374923, 194097111, 403124769, 582291333, 1209374307, 1746873999, 5240621997, 15721865991]

約数ペア:

[(1, 15721865991), (3, 5240621997), (9, 1746873999), (13, 1209374307), (27, 582291333), (39, 403124769), (81, 194097111), (117, 134374923), (243, 64699037), (351, 44791641), (1053, 14930547), (3159, 4976849)]