21131430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{227}}^1$

素因数の和:373

約数の個数: 64

約数和(自身を含む): 53187840

約数和(自身を除く): 32056410

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 107, 145, 174, 214, 227, 290, 321, 435, 454, 535, 642, 681, 870, 1070, 1135, 1362, 1605, 2270, 3103, 3210, 3405, 6206, 6583, 6810, 9309, 13166, 15515, 18618, 19749, 24289, 31030, 32915, 39498, 46545, 48578, 65830, 72867, 93090, 98745, 121445, 145734, 197490, 242890, 364335, 704381, 728670, 1408762, 2113143, 3521905, 4226286, 7043810, 10565715, 21131430]

約数ペア:

[(1, 21131430), (2, 10565715), (3, 7043810), (5, 4226286), (6, 3521905), (10, 2113143), (15, 1408762), (29, 728670), (30, 704381), (58, 364335), (87, 242890), (107, 197490), (145, 145734), (174, 121445), (214, 98745), (227, 93090), (290, 72867), (321, 65830), (435, 48578), (454, 46545), (535, 39498), (642, 32915), (681, 31030), (870, 24289), (1070, 19749), (1135, 18618), (1362, 15515), (1605, 13166), (2270, 9309), (3103, 6810), (3210, 6583), (3405, 6206)]