20996914136

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1141633}}^1$

素因数の和:1141680

約数の個数: 48

約数和(自身を含む): 45551196600

約数和(自身を除く): 24554282464

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 121, 152, 209, 242, 418, 484, 836, 968, 1672, 2299, 4598, 9196, 18392, 1141633, 2283266, 4566532, 9133064, 12557963, 21691027, 25115926, 43382054, 50231852, 86764108, 100463704, 138137593, 173528216, 238601297, 276275186, 477202594, 552550372, 954405188, 1105100744, 1908810376, 2624614267, 5249228534, 10498457068, 20996914136]

約数ペア:

[(1, 20996914136), (2, 10498457068), (4, 5249228534), (8, 2624614267), (11, 1908810376), (19, 1105100744), (22, 954405188), (38, 552550372), (44, 477202594), (76, 276275186), (88, 238601297), (121, 173528216), (152, 138137593), (209, 100463704), (242, 86764108), (418, 50231852), (484, 43382054), (836, 25115926), (968, 21691027), (1672, 12557963), (2299, 9133064), (4598, 4566532), (9196, 2283266), (18392, 1141633)]