15721923

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{937}}^1$

素因数の和:1011

約数の個数: 32

約数和(自身を含む): 25933824

約数和(自身を除く): 10211901

約数列:

[1, 3, 7, 17, 21, 47, 51, 119, 141, 329, 357, 799, 937, 987, 2397, 2811, 5593, 6559, 15929, 16779, 19677, 44039, 47787, 111503, 132117, 308273, 334509, 748663, 924819, 2245989, 5240641, 15721923]

約数ペア:

[(1, 15721923), (3, 5240641), (7, 2245989), (17, 924819), (21, 748663), (47, 334509), (51, 308273), (119, 132117), (141, 111503), (329, 47787), (357, 44039), (799, 19677), (937, 16779), (987, 15929), (2397, 6559), (2811, 5593)]