21622120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{967}}^1$

素因数の和:1034

約数の個数: 64

約数和(自身を含む): 53665920

約数和(自身を除く): 32043800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 260, 344, 430, 520, 559, 860, 967, 1118, 1720, 1934, 2236, 2795, 3868, 4472, 4835, 5590, 7736, 9670, 11180, 12571, 19340, 22360, 25142, 38680, 41581, 50284, 62855, 83162, 100568, 125710, 166324, 207905, 251420, 332648, 415810, 502840, 540553, 831620, 1081106, 1663240, 2162212, 2702765, 4324424, 5405530, 10811060, 21622120]

約数ペア:

[(1, 21622120), (2, 10811060), (4, 5405530), (5, 4324424), (8, 2702765), (10, 2162212), (13, 1663240), (20, 1081106), (26, 831620), (40, 540553), (43, 502840), (52, 415810), (65, 332648), (86, 251420), (104, 207905), (130, 166324), (172, 125710), (215, 100568), (260, 83162), (344, 62855), (430, 50284), (520, 41581), (559, 38680), (860, 25142), (967, 22360), (1118, 19340), (1720, 12571), (1934, 11180), (2236, 9670), (2795, 7736), (3868, 5590), (4472, 4835)]