21221808

素因数分解:

$2^4\times 3^1\times {\mathrm{442121}}^1$

素因数の和:442132

約数の個数: 20

約数和(自身を含む): 54823128

約数和(自身を除く): 33601320

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 442121, 884242, 1326363, 1768484, 2652726, 3536968, 5305452, 7073936, 10610904, 21221808]

約数ペア:

[(1, 21221808), (2, 10610904), (3, 7073936), (4, 5305452), (6, 3536968), (8, 2652726), (12, 1768484), (16, 1326363), (24, 884242), (48, 442121)]