21236526

素因数分解:

$2^1\times 3^3\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:302

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 28529874

約数列:

[1, 2, 3, 6, 9, 18, 27, 29, 54, 58, 71, 87, 142, 174, 191, 213, 261, 382, 426, 522, 573, 639, 783, 1146, 1278, 1566, 1719, 1917, 2059, 3438, 3834, 4118, 5157, 5539, 6177, 10314, 11078, 12354, 13561, 16617, 18531, 27122, 33234, 37062, 40683, 49851, 55593, 81366, 99702, 111186, 122049, 149553, 244098, 299106, 366147, 393269, 732294, 786538, 1179807, 2359614, 3539421, 7078842, 10618263, 21236526]

約数ペア:

[(1, 21236526), (2, 10618263), (3, 7078842), (6, 3539421), (9, 2359614), (18, 1179807), (27, 786538), (29, 732294), (54, 393269), (58, 366147), (71, 299106), (87, 244098), (142, 149553), (174, 122049), (191, 111186), (213, 99702), (261, 81366), (382, 55593), (426, 49851), (522, 40683), (573, 37062), (639, 33234), (783, 27122), (1146, 18531), (1278, 16617), (1566, 13561), (1719, 12354), (1917, 11078), (2059, 10314), (3438, 6177), (3834, 5539), (4118, 5157)]