21963540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8513}}^1$

素因数の和:8568

約数の個数: 48

約数和(自身を含む): 62935488

約数和(自身を除く): 40971948

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 8513, 17026, 25539, 34052, 42565, 51078, 85130, 102156, 127695, 170260, 255390, 366059, 510780, 732118, 1098177, 1464236, 1830295, 2196354, 3660590, 4392708, 5490885, 7321180, 10981770, 21963540]

約数ペア:

[(1, 21963540), (2, 10981770), (3, 7321180), (4, 5490885), (5, 4392708), (6, 3660590), (10, 2196354), (12, 1830295), (15, 1464236), (20, 1098177), (30, 732118), (43, 510780), (60, 366059), (86, 255390), (129, 170260), (172, 127695), (215, 102156), (258, 85130), (430, 51078), (516, 42565), (645, 34052), (860, 25539), (1290, 17026), (2580, 8513)]