21690864

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{11587}}^1$

素因数の和:11614

約数の個数: 60

約数和(自身を含む): 65379496

約数和(自身を除く): 43688632

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 312, 468, 624, 936, 1872, 11587, 23174, 34761, 46348, 69522, 92696, 104283, 139044, 150631, 185392, 208566, 278088, 301262, 417132, 451893, 556176, 602524, 834264, 903786, 1205048, 1355679, 1668528, 1807572, 2410096, 2711358, 3615144, 5422716, 7230288, 10845432, 21690864]

約数ペア:

[(1, 21690864), (2, 10845432), (3, 7230288), (4, 5422716), (6, 3615144), (8, 2711358), (9, 2410096), (12, 1807572), (13, 1668528), (16, 1355679), (18, 1205048), (24, 903786), (26, 834264), (36, 602524), (39, 556176), (48, 451893), (52, 417132), (72, 301262), (78, 278088), (104, 208566), (117, 185392), (144, 150631), (156, 139044), (208, 104283), (234, 92696), (312, 69522), (468, 46348), (624, 34761), (936, 23174), (1872, 11587)]