21961660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1523}}^1$

素因数の和:1642

約数の個数: 48

約数和(自身を含む): 53254656

約数和(自身を除く): 31292996

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 721, 1030, 1442, 1523, 2060, 2884, 3046, 3605, 6092, 7210, 7615, 10661, 14420, 15230, 21322, 30460, 42644, 53305, 106610, 156869, 213220, 313738, 627476, 784345, 1098083, 1568690, 2196166, 3137380, 4392332, 5490415, 10980830, 21961660]

約数ペア:

[(1, 21961660), (2, 10980830), (4, 5490415), (5, 4392332), (7, 3137380), (10, 2196166), (14, 1568690), (20, 1098083), (28, 784345), (35, 627476), (70, 313738), (103, 213220), (140, 156869), (206, 106610), (412, 53305), (515, 42644), (721, 30460), (1030, 21322), (1442, 15230), (1523, 14420), (2060, 10661), (2884, 7615), (3046, 7210), (3605, 6092)]