21644940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{360749}}^1$

素因数の和:360761

約数の個数: 24

約数和(自身を含む): 60606000

約数和(自身を除く): 38961060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 360749, 721498, 1082247, 1442996, 1803745, 2164494, 3607490, 4328988, 5411235, 7214980, 10822470, 21644940]

約数ペア:

[(1, 21644940), (2, 10822470), (3, 7214980), (4, 5411235), (5, 4328988), (6, 3607490), (10, 2164494), (12, 1803745), (15, 1442996), (20, 1082247), (30, 721498), (60, 360749)]