21266410

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1877}}^1$

素因数の和:1998

約数の個数: 32

約数和(自身を含む): 42187392

約数和(自身を除く): 20920982

約数列:

[1, 2, 5, 10, 11, 22, 55, 103, 110, 206, 515, 1030, 1133, 1877, 2266, 3754, 5665, 9385, 11330, 18770, 20647, 41294, 103235, 193331, 206470, 386662, 966655, 1933310, 2126641, 4253282, 10633205, 21266410]

約数ペア:

[(1, 21266410), (2, 10633205), (5, 4253282), (10, 2126641), (11, 1933310), (22, 966655), (55, 386662), (103, 206470), (110, 193331), (206, 103235), (515, 41294), (1030, 20647), (1133, 18770), (1877, 11330), (2266, 9385), (3754, 5665)]