21487896

素因数分解:

$2^3\times 3^3\times {\mathrm{53}}^1\times {\mathrm{1877}}^1$

素因数の和:1945

約数の個数: 64

約数和(自身を含む): 60847200

約数和(自身を除く): 39359304

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 53, 54, 72, 106, 108, 159, 212, 216, 318, 424, 477, 636, 954, 1272, 1431, 1877, 1908, 2862, 3754, 3816, 5631, 5724, 7508, 11262, 11448, 15016, 16893, 22524, 33786, 45048, 50679, 67572, 99481, 101358, 135144, 198962, 202716, 298443, 397924, 405432, 596886, 795848, 895329, 1193772, 1790658, 2387544, 2685987, 3581316, 5371974, 7162632, 10743948, 21487896]

約数ペア:

[(1, 21487896), (2, 10743948), (3, 7162632), (4, 5371974), (6, 3581316), (8, 2685987), (9, 2387544), (12, 1790658), (18, 1193772), (24, 895329), (27, 795848), (36, 596886), (53, 405432), (54, 397924), (72, 298443), (106, 202716), (108, 198962), (159, 135144), (212, 101358), (216, 99481), (318, 67572), (424, 50679), (477, 45048), (636, 33786), (954, 22524), (1272, 16893), (1431, 15016), (1877, 11448), (1908, 11262), (2862, 7508), (3754, 5724), (3816, 5631)]