669879

素因数分解:

$3^2\times 7^4\times {\mathrm{31}}^1$

素因数の和:65

約数の個数: 30

約数和(自身を含む): 1165216

約数和(自身を除く): 495337

約数列:

[1, 3, 7, 9, 21, 31, 49, 63, 93, 147, 217, 279, 343, 441, 651, 1029, 1519, 1953, 2401, 3087, 4557, 7203, 10633, 13671, 21609, 31899, 74431, 95697, 223293, 669879]

約数ペア:

[(1, 669879), (3, 223293), (7, 95697), (9, 74431), (21, 31899), (31, 21609), (49, 13671), (63, 10633), (93, 7203), (147, 4557), (217, 3087), (279, 2401), (343, 1953), (441, 1519), (651, 1029)]