18716964

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{1367}}^1$

素因数の和:1544

約数の個数: 48

約数和(自身を含む): 50254848

約数和(自身を除く): 31537884

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 163, 326, 489, 652, 978, 1141, 1367, 1956, 2282, 2734, 3423, 4101, 4564, 5468, 6846, 8202, 9569, 13692, 16404, 19138, 28707, 38276, 57414, 114828, 222821, 445642, 668463, 891284, 1336926, 1559747, 2673852, 3119494, 4679241, 6238988, 9358482, 18716964]

約数ペア:

[(1, 18716964), (2, 9358482), (3, 6238988), (4, 4679241), (6, 3119494), (7, 2673852), (12, 1559747), (14, 1336926), (21, 891284), (28, 668463), (42, 445642), (84, 222821), (163, 114828), (326, 57414), (489, 38276), (652, 28707), (978, 19138), (1141, 16404), (1367, 13692), (1956, 9569), (2282, 8202), (2734, 6846), (3423, 5468), (4101, 4564)]