21398326

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:276

約数の個数: 32

約数和(自身を含む): 34898688

約数和(自身を除く): 13500362

約数列:

[1, 2, 23, 46, 53, 67, 106, 131, 134, 262, 1219, 1541, 2438, 3013, 3082, 3551, 6026, 6943, 7102, 8777, 13886, 17554, 81673, 159689, 163346, 201871, 319378, 403742, 465181, 930362, 10699163, 21398326]

約数ペア:

[(1, 21398326), (2, 10699163), (23, 930362), (46, 465181), (53, 403742), (67, 319378), (106, 201871), (131, 163346), (134, 159689), (262, 81673), (1219, 17554), (1541, 13886), (2438, 8777), (3013, 7102), (3082, 6943), (3551, 6026)]