21931845

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2393}}^1$

素因数の和:2461

約数の個数: 32

約数和(自身を含む): 38610432

約数和(自身を除く): 16678587

約数列:

[1, 3, 5, 13, 15, 39, 47, 65, 141, 195, 235, 611, 705, 1833, 2393, 3055, 7179, 9165, 11965, 31109, 35895, 93327, 112471, 155545, 337413, 466635, 562355, 1462123, 1687065, 4386369, 7310615, 21931845]

約数ペア:

[(1, 21931845), (3, 7310615), (5, 4386369), (13, 1687065), (15, 1462123), (39, 562355), (47, 466635), (65, 337413), (141, 155545), (195, 112471), (235, 93327), (611, 35895), (705, 31109), (1833, 11965), (2393, 9165), (3055, 7179)]