18238311

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^2\times {\mathrm{571}}^1$

素因数の和:613

約数の個数: 48

約数和(自身を含む): 33496320

約数和(自身を除く): 15258009

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 169, 189, 273, 351, 507, 571, 819, 1183, 1521, 1713, 2457, 3549, 3997, 4563, 5139, 7423, 10647, 11991, 15417, 22269, 31941, 35973, 51961, 66807, 96499, 107919, 155883, 200421, 289497, 467649, 675493, 868491, 1402947, 2026479, 2605473, 6079437, 18238311]

約数ペア:

[(1, 18238311), (3, 6079437), (7, 2605473), (9, 2026479), (13, 1402947), (21, 868491), (27, 675493), (39, 467649), (63, 289497), (91, 200421), (117, 155883), (169, 107919), (189, 96499), (273, 66807), (351, 51961), (507, 35973), (571, 31941), (819, 22269), (1183, 15417), (1521, 11991), (1713, 10647), (2457, 7423), (3549, 5139), (3997, 4563)]