21137454

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{877}}^1$

素因数の和:1001

約数の個数: 48

約数和(自身を含む): 49856352

約数和(自身を除く): 28718898

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 103, 117, 206, 234, 309, 618, 877, 927, 1339, 1754, 1854, 2631, 2678, 4017, 5262, 7893, 8034, 11401, 12051, 15786, 22802, 24102, 34203, 68406, 90331, 102609, 180662, 205218, 270993, 541986, 812979, 1174303, 1625958, 2348606, 3522909, 7045818, 10568727, 21137454]

約数ペア:

[(1, 21137454), (2, 10568727), (3, 7045818), (6, 3522909), (9, 2348606), (13, 1625958), (18, 1174303), (26, 812979), (39, 541986), (78, 270993), (103, 205218), (117, 180662), (206, 102609), (234, 90331), (309, 68406), (618, 34203), (877, 24102), (927, 22802), (1339, 15786), (1754, 12051), (1854, 11401), (2631, 8034), (2678, 7893), (4017, 5262)]