21107398

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{9781}}^1$

素因数の和:9879

約数の個数: 16

約数和(自身を含む): 34510896

約数和(自身を除く): 13403498

約数列:

[1, 2, 13, 26, 83, 166, 1079, 2158, 9781, 19562, 127153, 254306, 811823, 1623646, 10553699, 21107398]

約数ペア:

[(1, 21107398), (2, 10553699), (13, 1623646), (26, 811823), (83, 254306), (166, 127153), (1079, 19562), (2158, 9781)]