18989608

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{6961}}^1$

素因数の和:7009

約数の個数: 32

約数和(自身を含む): 40101120

約数和(自身を除く): 21111512

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 88, 124, 248, 341, 682, 1364, 2728, 6961, 13922, 27844, 55688, 76571, 153142, 215791, 306284, 431582, 612568, 863164, 1726328, 2373701, 4747402, 9494804, 18989608]

約数ペア:

[(1, 18989608), (2, 9494804), (4, 4747402), (8, 2373701), (11, 1726328), (22, 863164), (31, 612568), (44, 431582), (62, 306284), (88, 215791), (124, 153142), (248, 76571), (341, 55688), (682, 27844), (1364, 13922), (2728, 6961)]