21943900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19949}}^1$

素因数の和:19974

約数の個数: 36

約数和(自身を含む): 51949800

約数和(自身を除く): 30005900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 19949, 39898, 79796, 99745, 199490, 219439, 398980, 438878, 498725, 877756, 997450, 1097195, 1994900, 2194390, 4388780, 5485975, 10971950, 21943900]

約数ペア:

[(1, 21943900), (2, 10971950), (4, 5485975), (5, 4388780), (10, 2194390), (11, 1994900), (20, 1097195), (22, 997450), (25, 877756), (44, 498725), (50, 438878), (55, 398980), (100, 219439), (110, 199490), (220, 99745), (275, 79796), (550, 39898), (1100, 19949)]