21982015

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{7541}}^1$

素因数の和:7610

約数の個数: 16

約数和(自身を含む): 29323296

約数和(自身を除く): 7341281

約数列:

[1, 5, 11, 53, 55, 265, 583, 2915, 7541, 37705, 82951, 399673, 414755, 1998365, 4396403, 21982015]

約数ペア:

[(1, 21982015), (5, 4396403), (11, 1998365), (53, 414755), (55, 399673), (265, 82951), (583, 37705), (2915, 7541)]