21124580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2417}}^1$

素因数の和:2468

約数の個数: 48

約数和(自身を含む): 48746880

約数和(自身を除く): 27622300

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 115, 190, 230, 380, 437, 460, 874, 1748, 2185, 2417, 4370, 4834, 8740, 9668, 12085, 24170, 45923, 48340, 55591, 91846, 111182, 183692, 222364, 229615, 277955, 459230, 555910, 918460, 1056229, 1111820, 2112458, 4224916, 5281145, 10562290, 21124580]

約数ペア:

[(1, 21124580), (2, 10562290), (4, 5281145), (5, 4224916), (10, 2112458), (19, 1111820), (20, 1056229), (23, 918460), (38, 555910), (46, 459230), (76, 277955), (92, 229615), (95, 222364), (115, 183692), (190, 111182), (230, 91846), (380, 55591), (437, 48340), (460, 45923), (874, 24170), (1748, 12085), (2185, 9668), (2417, 8740), (4370, 4834)]