21106890

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{33503}}^1$

素因数の和:33523

約数の個数: 48

約数和(自身を含む): 62719488

約数和(自身を除く): 41612598

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 33503, 67006, 100509, 167515, 201018, 234521, 301527, 335030, 469042, 502545, 603054, 703563, 1005090, 1172605, 1407126, 1507635, 2110689, 2345210, 3015270, 3517815, 4221378, 7035630, 10553445, 21106890]

約数ペア:

[(1, 21106890), (2, 10553445), (3, 7035630), (5, 4221378), (6, 3517815), (7, 3015270), (9, 2345210), (10, 2110689), (14, 1507635), (15, 1407126), (18, 1172605), (21, 1005090), (30, 703563), (35, 603054), (42, 502545), (45, 469042), (63, 335030), (70, 301527), (90, 234521), (105, 201018), (126, 167515), (210, 100509), (315, 67006), (630, 33503)]