21485604

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1$

素因数の和:305

約数の個数: 96

約数和(自身を含む): 61014016

約数和(自身を除く): 39528412

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 37, 42, 62, 74, 84, 93, 111, 124, 148, 186, 217, 222, 223, 259, 372, 434, 444, 446, 518, 651, 669, 777, 868, 892, 1036, 1147, 1302, 1338, 1554, 1561, 2294, 2604, 2676, 3108, 3122, 3441, 4588, 4683, 6244, 6882, 6913, 8029, 8251, 9366, 13764, 13826, 16058, 16502, 18732, 20739, 24087, 24753, 27652, 32116, 33004, 41478, 48174, 48391, 49506, 57757, 82956, 96348, 96782, 99012, 115514, 145173, 173271, 193564, 231028, 255781, 290346, 346542, 511562, 580692, 693084, 767343, 1023124, 1534686, 1790467, 3069372, 3580934, 5371401, 7161868, 10742802, 21485604]

約数ペア:

[(1, 21485604), (2, 10742802), (3, 7161868), (4, 5371401), (6, 3580934), (7, 3069372), (12, 1790467), (14, 1534686), (21, 1023124), (28, 767343), (31, 693084), (37, 580692), (42, 511562), (62, 346542), (74, 290346), (84, 255781), (93, 231028), (111, 193564), (124, 173271), (148, 145173), (186, 115514), (217, 99012), (222, 96782), (223, 96348), (259, 82956), (372, 57757), (434, 49506), (444, 48391), (446, 48174), (518, 41478), (651, 33004), (669, 32116), (777, 27652), (868, 24753), (892, 24087), (1036, 20739), (1147, 18732), (1302, 16502), (1338, 16058), (1554, 13826), (1561, 13764), (2294, 9366), (2604, 8251), (2676, 8029), (3108, 6913), (3122, 6882), (3441, 6244), (4588, 4683)]