18658773

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 32747520

約数和(自身を除く): 14088747

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 79, 161, 163, 207, 237, 483, 489, 553, 711, 1141, 1449, 1467, 1659, 1817, 3423, 3749, 4977, 5451, 10269, 11247, 12719, 12877, 16353, 26243, 33741, 38157, 38631, 78729, 90139, 114471, 115893, 236187, 270417, 296171, 811251, 888513, 2073197, 2665539, 6219591, 18658773]

約数ペア:

[(1, 18658773), (3, 6219591), (7, 2665539), (9, 2073197), (21, 888513), (23, 811251), (63, 296171), (69, 270417), (79, 236187), (161, 115893), (163, 114471), (207, 90139), (237, 78729), (483, 38631), (489, 38157), (553, 33741), (711, 26243), (1141, 16353), (1449, 12877), (1467, 12719), (1659, 11247), (1817, 10269), (3423, 5451), (3749, 4977)]