921990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1$

素因数の和:504

約数の個数: 32

約数和(自身を含む): 2248416

約数和(自身を除く): 1326426

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 73, 146, 219, 365, 421, 438, 730, 842, 1095, 1263, 2105, 2190, 2526, 4210, 6315, 12630, 30733, 61466, 92199, 153665, 184398, 307330, 460995, 921990]

約数ペア:

[(1, 921990), (2, 460995), (3, 307330), (5, 184398), (6, 153665), (10, 92199), (15, 61466), (30, 30733), (73, 12630), (146, 6315), (219, 4210), (365, 2526), (421, 2190), (438, 2105), (730, 1263), (842, 1095)]