21359286

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2467}}^1$

素因数の和:2525

約数の個数: 48

約数和(自身を含む): 51206064

約数和(自身を除く): 29846778

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 37, 39, 74, 78, 111, 117, 222, 234, 333, 481, 666, 962, 1443, 2467, 2886, 4329, 4934, 7401, 8658, 14802, 22203, 32071, 44406, 64142, 91279, 96213, 182558, 192426, 273837, 288639, 547674, 577278, 821511, 1186627, 1643022, 2373254, 3559881, 7119762, 10679643, 21359286]

約数ペア:

[(1, 21359286), (2, 10679643), (3, 7119762), (6, 3559881), (9, 2373254), (13, 1643022), (18, 1186627), (26, 821511), (37, 577278), (39, 547674), (74, 288639), (78, 273837), (111, 192426), (117, 182558), (222, 96213), (234, 91279), (333, 64142), (481, 44406), (666, 32071), (962, 22203), (1443, 14802), (2467, 8658), (2886, 7401), (4329, 4934)]