21431415

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{223}}^1$

素因数の和:423

約数の個数: 32

約数和(自身を含む): 35481600

約数和(自身を除く): 14050185

約数列:

[1, 3, 5, 15, 43, 129, 149, 215, 223, 447, 645, 669, 745, 1115, 2235, 3345, 6407, 9589, 19221, 28767, 32035, 33227, 47945, 96105, 99681, 143835, 166135, 498405, 1428761, 4286283, 7143805, 21431415]

約数ペア:

[(1, 21431415), (3, 7143805), (5, 4286283), (15, 1428761), (43, 498405), (129, 166135), (149, 143835), (215, 99681), (223, 96105), (447, 47945), (645, 33227), (669, 32035), (745, 28767), (1115, 19221), (2235, 9589), (3345, 6407)]