21460290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1451}}^1$

素因数の和:1507

約数の個数: 64

約数和(自身を含む): 56453760

約数和(自身を除く): 34993470

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 29, 30, 34, 51, 58, 85, 87, 102, 145, 170, 174, 255, 290, 435, 493, 510, 870, 986, 1451, 1479, 2465, 2902, 2958, 4353, 4930, 7255, 7395, 8706, 14510, 14790, 21765, 24667, 42079, 43530, 49334, 74001, 84158, 123335, 126237, 148002, 210395, 246670, 252474, 370005, 420790, 631185, 715343, 740010, 1262370, 1430686, 2146029, 3576715, 4292058, 7153430, 10730145, 21460290]

約数ペア:

[(1, 21460290), (2, 10730145), (3, 7153430), (5, 4292058), (6, 3576715), (10, 2146029), (15, 1430686), (17, 1262370), (29, 740010), (30, 715343), (34, 631185), (51, 420790), (58, 370005), (85, 252474), (87, 246670), (102, 210395), (145, 148002), (170, 126237), (174, 123335), (255, 84158), (290, 74001), (435, 49334), (493, 43530), (510, 42079), (870, 24667), (986, 21765), (1451, 14790), (1479, 14510), (2465, 8706), (2902, 7395), (2958, 7255), (4353, 4930)]