21210970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{1277}}^1$

素因数の和:1446

約数の個数: 32

約数和(自身を含む): 41959296

約数和(自身を除く): 20748326

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 151, 302, 755, 1277, 1510, 1661, 2554, 3322, 6385, 8305, 12770, 14047, 16610, 28094, 70235, 140470, 192827, 385654, 964135, 1928270, 2121097, 4242194, 10605485, 21210970]

約数ペア:

[(1, 21210970), (2, 10605485), (5, 4242194), (10, 2121097), (11, 1928270), (22, 964135), (55, 385654), (110, 192827), (151, 140470), (302, 70235), (755, 28094), (1277, 16610), (1510, 14047), (1661, 12770), (2554, 8305), (3322, 6385)]