221544981

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{74821}}^1$

素因数の和:74881

約数の個数: 24

約数和(自身を含む): 373511424

約数和(自身を除く): 151966443

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 74821, 224463, 523747, 673389, 1571241, 3516587, 4713723, 10549761, 24616109, 31649283, 73848327, 221544981]

約数ペア:

[(1, 221544981), (3, 73848327), (7, 31649283), (9, 24616109), (21, 10549761), (47, 4713723), (63, 3516587), (141, 1571241), (329, 673389), (423, 523747), (987, 224463), (2961, 74821)]