21962220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{52291}}^1$

素因数の和:52310

約数の個数: 48

約数和(自身を含む): 70280448

約数和(自身を除く): 48318228

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 52291, 104582, 156873, 209164, 261455, 313746, 366037, 522910, 627492, 732074, 784365, 1045820, 1098111, 1464148, 1568730, 1830185, 2196222, 3137460, 3660370, 4392444, 5490555, 7320740, 10981110, 21962220]

約数ペア:

[(1, 21962220), (2, 10981110), (3, 7320740), (4, 5490555), (5, 4392444), (6, 3660370), (7, 3137460), (10, 2196222), (12, 1830185), (14, 1568730), (15, 1464148), (20, 1098111), (21, 1045820), (28, 784365), (30, 732074), (35, 627492), (42, 522910), (60, 366037), (70, 313746), (84, 261455), (105, 209164), (140, 156873), (210, 104582), (420, 52291)]