21376914

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{5171}}^1$

素因数の和:5242

約数の個数: 32

約数和(自身を含む): 46920384

約数和(自身を除く): 25543470

約数列:

[1, 2, 3, 6, 13, 26, 39, 53, 78, 106, 159, 318, 689, 1378, 2067, 4134, 5171, 10342, 15513, 31026, 67223, 134446, 201669, 274063, 403338, 548126, 822189, 1644378, 3562819, 7125638, 10688457, 21376914]

約数ペア:

[(1, 21376914), (2, 10688457), (3, 7125638), (6, 3562819), (13, 1644378), (26, 822189), (39, 548126), (53, 403338), (78, 274063), (106, 201669), (159, 134446), (318, 67223), (689, 31026), (1378, 15513), (2067, 10342), (4134, 5171)]