20888974689

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{269}}^1\times {\mathrm{929}}^1$

素因数の和:1378

約数の個数: 64

約数和(自身を含む): 32542560000

約数和(自身を除く): 11653585311

約数列:

[1, 3, 11, 17, 33, 51, 149, 187, 269, 447, 561, 807, 929, 1639, 2533, 2787, 2959, 4573, 4917, 7599, 8877, 10219, 13719, 15793, 27863, 30657, 40081, 47379, 50303, 83589, 120243, 138421, 150909, 173723, 249901, 415263, 440891, 521169, 681377, 749703, 1322673, 1522631, 2044131, 2353157, 2748911, 4248317, 4567893, 7059471, 7495147, 8246733, 12744951, 22485441, 25884727, 37235249, 46731487, 77654181, 111705747, 140194461, 409587739, 632999233, 1228763217, 1898997699, 6962991563, 20888974689]

約数ペア:

[(1, 20888974689), (3, 6962991563), (11, 1898997699), (17, 1228763217), (33, 632999233), (51, 409587739), (149, 140194461), (187, 111705747), (269, 77654181), (447, 46731487), (561, 37235249), (807, 25884727), (929, 22485441), (1639, 12744951), (2533, 8246733), (2787, 7495147), (2959, 7059471), (4573, 4567893), (4917, 4248317), (7599, 2748911), (8877, 2353157), (10219, 2044131), (13719, 1522631), (15793, 1322673), (27863, 749703), (30657, 681377), (40081, 521169), (47379, 440891), (50303, 415263), (83589, 249901), (120243, 173723), (138421, 150909)]