18176788

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{487}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 38477824

約数和(自身を除く): 20301036

約数列:

[1, 2, 4, 7, 14, 28, 31, 43, 62, 86, 124, 172, 217, 301, 434, 487, 602, 868, 974, 1204, 1333, 1948, 2666, 3409, 5332, 6818, 9331, 13636, 15097, 18662, 20941, 30194, 37324, 41882, 60388, 83764, 105679, 146587, 211358, 293174, 422716, 586348, 649171, 1298342, 2596684, 4544197, 9088394, 18176788]

約数ペア:

[(1, 18176788), (2, 9088394), (4, 4544197), (7, 2596684), (14, 1298342), (28, 649171), (31, 586348), (43, 422716), (62, 293174), (86, 211358), (124, 146587), (172, 105679), (217, 83764), (301, 60388), (434, 41882), (487, 37324), (602, 30194), (868, 20941), (974, 18662), (1204, 15097), (1333, 13636), (1948, 9331), (2666, 6818), (3409, 5332)]