2019925621

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{167}}^1\times {\mathrm{401}}^1$

素因数の和:745

約数の個数: 32

約数和(自身を含む): 2420490240

約数和(自身を除く): 400564619

約数列:

[1, 7, 31, 139, 167, 217, 401, 973, 1169, 2807, 4309, 5177, 12431, 23213, 30163, 36239, 55739, 66967, 87017, 162491, 390173, 468769, 719603, 1727909, 2075977, 5037221, 9308413, 12095363, 14531839, 65158891, 288560803, 2019925621]

約数ペア:

[(1, 2019925621), (7, 288560803), (31, 65158891), (139, 14531839), (167, 12095363), (217, 9308413), (401, 5037221), (973, 2075977), (1169, 1727909), (2807, 719603), (4309, 468769), (5177, 390173), (12431, 162491), (23213, 87017), (30163, 66967), (36239, 55739)]