21000766974748

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{11867}}^1\times {\mathrm{758867}}^1$

素因数の和:770802

約数の個数: 48

約数和(自身を含む): 40852329243264

約数和(自身を除く): 19851562268516

約数列:

[1, 2, 4, 11, 22, 44, 53, 106, 212, 583, 1166, 2332, 11867, 23734, 47468, 130537, 261074, 522148, 628951, 758867, 1257902, 1517734, 2515804, 3035468, 6918461, 8347537, 13836922, 16695074, 27673844, 33390148, 40219951, 80439902, 160879804, 442419461, 884838922, 1769677844, 9005474689, 18010949378, 36021898756, 99060221579, 198120443158, 396240886316, 477290158517, 954580317034, 1909160634068, 5250191743687, 10500383487374, 21000766974748]

約数ペア:

[(1, 21000766974748), (2, 10500383487374), (4, 5250191743687), (11, 1909160634068), (22, 954580317034), (44, 477290158517), (53, 396240886316), (106, 198120443158), (212, 99060221579), (583, 36021898756), (1166, 18010949378), (2332, 9005474689), (11867, 1769677844), (23734, 884838922), (47468, 442419461), (130537, 160879804), (261074, 80439902), (522148, 40219951), (628951, 33390148), (758867, 27673844), (1257902, 16695074), (1517734, 13836922), (2515804, 8347537), (3035468, 6918461)]