21989790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{3347}}^1$

素因数の和:3433

約数の個数: 48

約数和(自身を含む): 57973968

約数和(自身を除く): 35984178

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 73, 90, 146, 219, 365, 438, 657, 730, 1095, 1314, 2190, 3285, 3347, 6570, 6694, 10041, 16735, 20082, 30123, 33470, 50205, 60246, 100410, 150615, 244331, 301230, 488662, 732993, 1221655, 1465986, 2198979, 2443310, 3664965, 4397958, 7329930, 10994895, 21989790]

約数ペア:

[(1, 21989790), (2, 10994895), (3, 7329930), (5, 4397958), (6, 3664965), (9, 2443310), (10, 2198979), (15, 1465986), (18, 1221655), (30, 732993), (45, 488662), (73, 301230), (90, 244331), (146, 150615), (219, 100410), (365, 60246), (438, 50205), (657, 33470), (730, 30123), (1095, 20082), (1314, 16735), (2190, 10041), (3285, 6694), (3347, 6570)]