215530866

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{1231}}^1$

素因数の和:1447

約数の個数: 48

約数和(自身を含む): 477404928

約数和(自身を除く): 261874062

約数列:

[1, 2, 3, 6, 9, 18, 71, 137, 142, 213, 274, 411, 426, 639, 822, 1231, 1233, 1278, 2462, 2466, 3693, 7386, 9727, 11079, 19454, 22158, 29181, 58362, 87401, 87543, 168647, 174802, 175086, 262203, 337294, 505941, 524406, 786609, 1011882, 1517823, 1573218, 3035646, 11973937, 23947874, 35921811, 71843622, 107765433, 215530866]

約数ペア:

[(1, 215530866), (2, 107765433), (3, 71843622), (6, 35921811), (9, 23947874), (18, 11973937), (71, 3035646), (137, 1573218), (142, 1517823), (213, 1011882), (274, 786609), (411, 524406), (426, 505941), (639, 337294), (822, 262203), (1231, 175086), (1233, 174802), (1278, 168647), (2462, 87543), (2466, 87401), (3693, 58362), (7386, 29181), (9727, 22158), (11079, 19454)]