21905850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{3947}}^1$

素因数の和:3999

約数の個数: 48

約数和(自身を含む): 55808928

約数和(自身を除く): 33903078

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 37, 50, 74, 75, 111, 150, 185, 222, 370, 555, 925, 1110, 1850, 2775, 3947, 5550, 7894, 11841, 19735, 23682, 39470, 59205, 98675, 118410, 146039, 197350, 292078, 296025, 438117, 592050, 730195, 876234, 1460390, 2190585, 3650975, 4381170, 7301950, 10952925, 21905850]

約数ペア:

[(1, 21905850), (2, 10952925), (3, 7301950), (5, 4381170), (6, 3650975), (10, 2190585), (15, 1460390), (25, 876234), (30, 730195), (37, 592050), (50, 438117), (74, 296025), (75, 292078), (111, 197350), (150, 146039), (185, 118410), (222, 98675), (370, 59205), (555, 39470), (925, 23682), (1110, 19735), (1850, 11841), (2775, 7894), (3947, 5550)]