21224620

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{8101}}^1$

素因数の和:8241

約数の個数: 24

約数和(自身を含む): 44917488

約数和(自身を除く): 23692868

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 8101, 16202, 32404, 40505, 81010, 162020, 1061231, 2122462, 4244924, 5306155, 10612310, 21224620]

約数ペア:

[(1, 21224620), (2, 10612310), (4, 5306155), (5, 4244924), (10, 2122462), (20, 1061231), (131, 162020), (262, 81010), (524, 40505), (655, 32404), (1310, 16202), (2620, 8101)]