21438326

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1$

素因数の和:106

約数の個数: 64

約数和(自身を含む): 43182720

約数和(自身を除く): 21744394

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 41, 82, 91, 119, 169, 182, 221, 238, 287, 338, 442, 533, 574, 697, 1066, 1183, 1394, 1547, 2197, 2366, 2873, 3094, 3731, 4394, 4879, 5746, 6929, 7462, 9061, 9758, 13858, 15379, 18122, 20111, 30758, 37349, 40222, 48503, 63427, 74698, 90077, 97006, 117793, 126854, 180154, 235586, 261443, 522886, 630539, 824551, 1261078, 1531309, 1649102, 3062618, 10719163, 21438326]

約数ペア:

[(1, 21438326), (2, 10719163), (7, 3062618), (13, 1649102), (14, 1531309), (17, 1261078), (26, 824551), (34, 630539), (41, 522886), (82, 261443), (91, 235586), (119, 180154), (169, 126854), (182, 117793), (221, 97006), (238, 90077), (287, 74698), (338, 63427), (442, 48503), (533, 40222), (574, 37349), (697, 30758), (1066, 20111), (1183, 18122), (1394, 15379), (1547, 13858), (2197, 9758), (2366, 9061), (2873, 7462), (3094, 6929), (3731, 5746), (4394, 4879)]