21610620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{569}}^1$

素因数の和:795

約数の個数: 72

約数和(自身を含む): 65978640

約数和(自身を除く): 44368020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 211, 422, 569, 633, 844, 1055, 1138, 1266, 1707, 1899, 2110, 2276, 2532, 2845, 3165, 3414, 3798, 4220, 5121, 5690, 6330, 6828, 7596, 8535, 9495, 10242, 11380, 12660, 17070, 18990, 20484, 25605, 34140, 37980, 51210, 102420, 120059, 240118, 360177, 480236, 600295, 720354, 1080531, 1200590, 1440708, 1800885, 2161062, 2401180, 3601770, 4322124, 5402655, 7203540, 10805310, 21610620]

約数ペア:

[(1, 21610620), (2, 10805310), (3, 7203540), (4, 5402655), (5, 4322124), (6, 3601770), (9, 2401180), (10, 2161062), (12, 1800885), (15, 1440708), (18, 1200590), (20, 1080531), (30, 720354), (36, 600295), (45, 480236), (60, 360177), (90, 240118), (180, 120059), (211, 102420), (422, 51210), (569, 37980), (633, 34140), (844, 25605), (1055, 20484), (1138, 18990), (1266, 17070), (1707, 12660), (1899, 11380), (2110, 10242), (2276, 9495), (2532, 8535), (2845, 7596), (3165, 6828), (3414, 6330), (3798, 5690), (4220, 5121)]