21727818

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1223}}^1$

素因数の和:1288

約数の個数: 64

約数和(自身を含む): 56401920

約数和(自身を除く): 34674102

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 47, 54, 63, 94, 126, 141, 189, 282, 329, 378, 423, 658, 846, 987, 1223, 1269, 1974, 2446, 2538, 2961, 3669, 5922, 7338, 8561, 8883, 11007, 17122, 17766, 22014, 25683, 33021, 51366, 57481, 66042, 77049, 114962, 154098, 172443, 231147, 344886, 402367, 462294, 517329, 804734, 1034658, 1207101, 1551987, 2414202, 3103974, 3621303, 7242606, 10863909, 21727818]

約数ペア:

[(1, 21727818), (2, 10863909), (3, 7242606), (6, 3621303), (7, 3103974), (9, 2414202), (14, 1551987), (18, 1207101), (21, 1034658), (27, 804734), (42, 517329), (47, 462294), (54, 402367), (63, 344886), (94, 231147), (126, 172443), (141, 154098), (189, 114962), (282, 77049), (329, 66042), (378, 57481), (423, 51366), (658, 33021), (846, 25683), (987, 22014), (1223, 17766), (1269, 17122), (1974, 11007), (2446, 8883), (2538, 8561), (2961, 7338), (3669, 5922)]