21142688

素因数分解:

$2^5\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2551}}^1$

素因数の和:2605

約数の個数: 48

約数和(自身を含む): 48875904

約数和(自身を除く): 27733216

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 56, 74, 112, 148, 224, 259, 296, 518, 592, 1036, 1184, 2072, 2551, 4144, 5102, 8288, 10204, 17857, 20408, 35714, 40816, 71428, 81632, 94387, 142856, 188774, 285712, 377548, 571424, 660709, 755096, 1321418, 1510192, 2642836, 3020384, 5285672, 10571344, 21142688]

約数ペア:

[(1, 21142688), (2, 10571344), (4, 5285672), (7, 3020384), (8, 2642836), (14, 1510192), (16, 1321418), (28, 755096), (32, 660709), (37, 571424), (56, 377548), (74, 285712), (112, 188774), (148, 142856), (224, 94387), (259, 81632), (296, 71428), (518, 40816), (592, 35714), (1036, 20408), (1184, 17857), (2072, 10204), (2551, 8288), (4144, 5102)]