21547728

素因数分解:

$2^4\times 3^3\times {\mathrm{31}}^1\times {\mathrm{1609}}^1$

素因数の和:1657

約数の個数: 80

約数和(自身を含む): 63884800

約数和(自身を除く): 42337072

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 31, 36, 48, 54, 62, 72, 93, 108, 124, 144, 186, 216, 248, 279, 372, 432, 496, 558, 744, 837, 1116, 1488, 1609, 1674, 2232, 3218, 3348, 4464, 4827, 6436, 6696, 9654, 12872, 13392, 14481, 19308, 25744, 28962, 38616, 43443, 49879, 57924, 77232, 86886, 99758, 115848, 149637, 173772, 199516, 231696, 299274, 347544, 399032, 448911, 598548, 695088, 798064, 897822, 1197096, 1346733, 1795644, 2394192, 2693466, 3591288, 5386932, 7182576, 10773864, 21547728]

約数ペア:

[(1, 21547728), (2, 10773864), (3, 7182576), (4, 5386932), (6, 3591288), (8, 2693466), (9, 2394192), (12, 1795644), (16, 1346733), (18, 1197096), (24, 897822), (27, 798064), (31, 695088), (36, 598548), (48, 448911), (54, 399032), (62, 347544), (72, 299274), (93, 231696), (108, 199516), (124, 173772), (144, 149637), (186, 115848), (216, 99758), (248, 86886), (279, 77232), (372, 57924), (432, 49879), (496, 43443), (558, 38616), (744, 28962), (837, 25744), (1116, 19308), (1488, 14481), (1609, 13392), (1674, 12872), (2232, 9654), (3218, 6696), (3348, 6436), (4464, 4827)]