21036278

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1\times {\mathrm{631}}^1$

素因数の和:923

約数の個数: 16

約数和(自身を含む): 32156160

約数和(自身を除く): 11119882

約数列:

[1, 2, 79, 158, 211, 422, 631, 1262, 16669, 33338, 49849, 99698, 133141, 266282, 10518139, 21036278]

約数ペア:

[(1, 21036278), (2, 10518139), (79, 266282), (158, 133141), (211, 99698), (422, 49849), (631, 33338), (1262, 16669)]