21914090

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:215

約数の個数: 64

約数和(自身を含む): 45505152

約数和(自身を除く): 23591062

約数列:

[1, 2, 5, 10, 11, 22, 41, 43, 55, 82, 86, 110, 113, 205, 215, 226, 410, 430, 451, 473, 565, 902, 946, 1130, 1243, 1763, 2255, 2365, 2486, 3526, 4510, 4633, 4730, 4859, 6215, 8815, 9266, 9718, 12430, 17630, 19393, 23165, 24295, 38786, 46330, 48590, 50963, 53449, 96965, 101926, 106898, 193930, 199219, 254815, 267245, 398438, 509630, 534490, 996095, 1992190, 2191409, 4382818, 10957045, 21914090]

約数ペア:

[(1, 21914090), (2, 10957045), (5, 4382818), (10, 2191409), (11, 1992190), (22, 996095), (41, 534490), (43, 509630), (55, 398438), (82, 267245), (86, 254815), (110, 199219), (113, 193930), (205, 106898), (215, 101926), (226, 96965), (410, 53449), (430, 50963), (451, 48590), (473, 46330), (565, 38786), (902, 24295), (946, 23165), (1130, 19393), (1243, 17630), (1763, 12430), (2255, 9718), (2365, 9266), (2486, 8815), (3526, 6215), (4510, 4859), (4633, 4730)]