21473949

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{953}}^1$

素因数の和:1029

約数の個数: 32

約数和(自身を含む): 34801920

約数和(自身を除く): 13327971

約数列:

[1, 3, 7, 21, 29, 37, 87, 111, 203, 259, 609, 777, 953, 1073, 2859, 3219, 6671, 7511, 20013, 22533, 27637, 35261, 82911, 105783, 193459, 246827, 580377, 740481, 1022569, 3067707, 7157983, 21473949]

約数ペア:

[(1, 21473949), (3, 7157983), (7, 3067707), (21, 1022569), (29, 740481), (37, 580377), (87, 246827), (111, 193459), (203, 105783), (259, 82911), (609, 35261), (777, 27637), (953, 22533), (1073, 20013), (2859, 7511), (3219, 6671)]