18681117

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1669}}^1$

素因数の和:1733

約数の個数: 32

約数和(自身を含む): 31422720

約数和(自身を除く): 12741603

約数列:

[1, 3, 7, 13, 21, 39, 41, 91, 123, 273, 287, 533, 861, 1599, 1669, 3731, 5007, 11193, 11683, 21697, 35049, 65091, 68429, 151879, 205287, 455637, 479003, 889577, 1437009, 2668731, 6227039, 18681117]

約数ペア:

[(1, 18681117), (3, 6227039), (7, 2668731), (13, 1437009), (21, 889577), (39, 479003), (41, 455637), (91, 205287), (123, 151879), (273, 68429), (287, 65091), (533, 35049), (861, 21697), (1599, 11683), (1669, 11193), (3731, 5007)]