21450110

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{1789}}^1$

素因数の和:1916

約数の個数: 32

約数和(自身を含む): 42530400

約数和(自身を除く): 21080290

約数列:

[1, 2, 5, 10, 11, 22, 55, 109, 110, 218, 545, 1090, 1199, 1789, 2398, 3578, 5995, 8945, 11990, 17890, 19679, 39358, 98395, 195001, 196790, 390002, 975005, 1950010, 2145011, 4290022, 10725055, 21450110]

約数ペア:

[(1, 21450110), (2, 10725055), (5, 4290022), (10, 2145011), (11, 1950010), (22, 975005), (55, 390002), (109, 196790), (110, 195001), (218, 98395), (545, 39358), (1090, 19679), (1199, 17890), (1789, 11990), (2398, 8945), (3578, 5995)]