21621780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{120121}}^1$

素因数の和:120136

約数の個数: 36

約数和(自身を含む): 65586612

約数和(自身を除く): 43964832

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 120121, 240242, 360363, 480484, 600605, 720726, 1081089, 1201210, 1441452, 1801815, 2162178, 2402420, 3603630, 4324356, 5405445, 7207260, 10810890, 21621780]

約数ペア:

[(1, 21621780), (2, 10810890), (3, 7207260), (4, 5405445), (5, 4324356), (6, 3603630), (9, 2402420), (10, 2162178), (12, 1801815), (15, 1441452), (18, 1201210), (20, 1081089), (30, 720726), (36, 600605), (45, 480484), (60, 360363), (90, 240242), (180, 120121)]