18430659

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{761}}^1$

素因数の和:809

約数の個数: 40

約数和(自身を含む): 30979872

約数和(自身を除く): 12549213

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 81, 117, 207, 299, 351, 621, 761, 897, 1053, 1863, 2283, 2691, 6849, 8073, 9893, 17503, 20547, 24219, 29679, 52509, 61641, 89037, 157527, 227539, 267111, 472581, 682617, 801333, 1417743, 2047851, 6143553, 18430659]

約数ペア:

[(1, 18430659), (3, 6143553), (9, 2047851), (13, 1417743), (23, 801333), (27, 682617), (39, 472581), (69, 267111), (81, 227539), (117, 157527), (207, 89037), (299, 61641), (351, 52509), (621, 29679), (761, 24219), (897, 20547), (1053, 17503), (1863, 9893), (2283, 8073), (2691, 6849)]