21696690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{5279}}^1$

素因数の和:5426

約数の個数: 32

約数和(自身を含む): 52462080

約数和(自身を除く): 30765390

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 137, 274, 411, 685, 822, 1370, 2055, 4110, 5279, 10558, 15837, 26395, 31674, 52790, 79185, 158370, 723223, 1446446, 2169669, 3616115, 4339338, 7232230, 10848345, 21696690]

約数ペア:

[(1, 21696690), (2, 10848345), (3, 7232230), (5, 4339338), (6, 3616115), (10, 2169669), (15, 1446446), (30, 723223), (137, 158370), (274, 79185), (411, 52790), (685, 31674), (822, 26395), (1370, 15837), (2055, 10558), (4110, 5279)]