19994388

素因数分解:

$2^2\times 3^1\times {\mathrm{41}}^1\times {\mathrm{40639}}^1$

素因数の和:40687

約数の個数: 24

約数和(自身を含む): 47792640

約数和(自身を除く): 27798252

約数列:

[1, 2, 3, 4, 6, 12, 41, 82, 123, 164, 246, 492, 40639, 81278, 121917, 162556, 243834, 487668, 1666199, 3332398, 4998597, 6664796, 9997194, 19994388]

約数ペア:

[(1, 19994388), (2, 9997194), (3, 6664796), (4, 4998597), (6, 3332398), (12, 1666199), (41, 487668), (82, 243834), (123, 162556), (164, 121917), (246, 81278), (492, 40639)]