18775724

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{607}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 38814720

約数和(自身を除く): 20038996

約数列:

[1, 2, 4, 11, 19, 22, 37, 38, 44, 74, 76, 148, 209, 407, 418, 607, 703, 814, 836, 1214, 1406, 1628, 2428, 2812, 6677, 7733, 11533, 13354, 15466, 22459, 23066, 26708, 30932, 44918, 46132, 89836, 126863, 247049, 253726, 426721, 494098, 507452, 853442, 988196, 1706884, 4693931, 9387862, 18775724]

約数ペア:

[(1, 18775724), (2, 9387862), (4, 4693931), (11, 1706884), (19, 988196), (22, 853442), (37, 507452), (38, 494098), (44, 426721), (74, 253726), (76, 247049), (148, 126863), (209, 89836), (407, 46132), (418, 44918), (607, 30932), (703, 26708), (814, 23066), (836, 22459), (1214, 15466), (1406, 13354), (1628, 11533), (2428, 7733), (2812, 6677)]