21238844

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{677}}^1$

素因数の和:746

約数の個数: 48

約数和(自身を含む): 43739136

約数和(自身を除く): 22500292

約数列:

[1, 2, 4, 11, 22, 23, 31, 44, 46, 62, 92, 124, 253, 341, 506, 677, 682, 713, 1012, 1354, 1364, 1426, 2708, 2852, 7447, 7843, 14894, 15571, 15686, 20987, 29788, 31142, 31372, 41974, 62284, 83948, 171281, 230857, 342562, 461714, 482701, 685124, 923428, 965402, 1930804, 5309711, 10619422, 21238844]

約数ペア:

[(1, 21238844), (2, 10619422), (4, 5309711), (11, 1930804), (22, 965402), (23, 923428), (31, 685124), (44, 482701), (46, 461714), (62, 342562), (92, 230857), (124, 171281), (253, 83948), (341, 62284), (506, 41974), (677, 31372), (682, 31142), (713, 29788), (1012, 20987), (1354, 15686), (1364, 15571), (1426, 14894), (2708, 7843), (2852, 7447)]