21881262

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:217

約数の個数: 64

約数和(自身を含む): 49351680

約数和(自身を除く): 27470418

約数列:

[1, 2, 3, 6, 13, 26, 39, 53, 67, 78, 79, 106, 134, 158, 159, 201, 237, 318, 402, 474, 689, 871, 1027, 1378, 1742, 2054, 2067, 2613, 3081, 3551, 4134, 4187, 5226, 5293, 6162, 7102, 8374, 10586, 10653, 12561, 15879, 21306, 25122, 31758, 46163, 54431, 68809, 92326, 108862, 137618, 138489, 163293, 206427, 276978, 280529, 326586, 412854, 561058, 841587, 1683174, 3646877, 7293754, 10940631, 21881262]

約数ペア:

[(1, 21881262), (2, 10940631), (3, 7293754), (6, 3646877), (13, 1683174), (26, 841587), (39, 561058), (53, 412854), (67, 326586), (78, 280529), (79, 276978), (106, 206427), (134, 163293), (158, 138489), (159, 137618), (201, 108862), (237, 92326), (318, 68809), (402, 54431), (474, 46163), (689, 31758), (871, 25122), (1027, 21306), (1378, 15879), (1742, 12561), (2054, 10653), (2067, 10586), (2613, 8374), (3081, 7102), (3551, 6162), (4134, 5293), (4187, 5226)]