21134178

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2441}}^1$

素因数の和:2499

約数の個数: 48

約数和(自身を含む): 50666616

約数和(自身を除く): 29532438

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 37, 39, 74, 78, 111, 117, 222, 234, 333, 481, 666, 962, 1443, 2441, 2886, 4329, 4882, 7323, 8658, 14646, 21969, 31733, 43938, 63466, 90317, 95199, 180634, 190398, 270951, 285597, 541902, 571194, 812853, 1174121, 1625706, 2348242, 3522363, 7044726, 10567089, 21134178]

約数ペア:

[(1, 21134178), (2, 10567089), (3, 7044726), (6, 3522363), (9, 2348242), (13, 1625706), (18, 1174121), (26, 812853), (37, 571194), (39, 541902), (74, 285597), (78, 270951), (111, 190398), (117, 180634), (222, 95199), (234, 90317), (333, 63466), (481, 43938), (666, 31733), (962, 21969), (1443, 14646), (2441, 8658), (2886, 7323), (4329, 4882)]