21036310

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{251}}^1$

素因数の和:321

約数の個数: 48

約数和(自身を含む): 41776560

約数和(自身を除く): 20740250

約数列:

[1, 2, 5, 10, 17, 29, 34, 58, 85, 145, 170, 251, 289, 290, 493, 502, 578, 986, 1255, 1445, 2465, 2510, 2890, 4267, 4930, 7279, 8381, 8534, 14558, 16762, 21335, 36395, 41905, 42670, 72539, 72790, 83810, 123743, 145078, 247486, 362695, 618715, 725390, 1237430, 2103631, 4207262, 10518155, 21036310]

約数ペア:

[(1, 21036310), (2, 10518155), (5, 4207262), (10, 2103631), (17, 1237430), (29, 725390), (34, 618715), (58, 362695), (85, 247486), (145, 145078), (170, 123743), (251, 83810), (289, 72790), (290, 72539), (493, 42670), (502, 41905), (578, 36395), (986, 21335), (1255, 16762), (1445, 14558), (2465, 8534), (2510, 8381), (2890, 7279), (4267, 4930)]