20386924

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 39916800

約数和(自身を除く): 19529876

約数列:

[1, 2, 4, 19, 23, 38, 46, 76, 92, 107, 109, 214, 218, 428, 436, 437, 874, 1748, 2033, 2071, 2461, 2507, 4066, 4142, 4922, 5014, 8132, 8284, 9844, 10028, 11663, 23326, 46652, 46759, 47633, 93518, 95266, 187036, 190532, 221597, 268249, 443194, 536498, 886388, 1072996, 5096731, 10193462, 20386924]

約数ペア:

[(1, 20386924), (2, 10193462), (4, 5096731), (19, 1072996), (23, 886388), (38, 536498), (46, 443194), (76, 268249), (92, 221597), (107, 190532), (109, 187036), (214, 95266), (218, 93518), (428, 47633), (436, 46759), (437, 46652), (874, 23326), (1748, 11663), (2033, 10028), (2071, 9844), (2461, 8284), (2507, 8132), (4066, 5014), (4142, 4922)]