21796148

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{6977}}^1$

素因数の和:7063

約数の個数: 24

約数和(自身を含む): 42202944

約数和(自身を除く): 20406796

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 284, 781, 1562, 3124, 6977, 13954, 27908, 76747, 153494, 306988, 495367, 990734, 1981468, 5449037, 10898074, 21796148]

約数ペア:

[(1, 21796148), (2, 10898074), (4, 5449037), (11, 1981468), (22, 990734), (44, 495367), (71, 306988), (142, 153494), (284, 76747), (781, 27908), (1562, 13954), (3124, 6977)]