21517524

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{829}}^1$

素因数の和:949

約数の個数: 72

約数和(自身を含む): 62840960

約数和(自身を除く): 41323436

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 103, 126, 206, 252, 309, 412, 618, 721, 829, 927, 1236, 1442, 1658, 1854, 2163, 2487, 2884, 3316, 3708, 4326, 4974, 5803, 6489, 7461, 8652, 9948, 11606, 12978, 14922, 17409, 23212, 25956, 29844, 34818, 52227, 69636, 85387, 104454, 170774, 208908, 256161, 341548, 512322, 597709, 768483, 1024644, 1195418, 1536966, 1793127, 2390836, 3073932, 3586254, 5379381, 7172508, 10758762, 21517524]

約数ペア:

[(1, 21517524), (2, 10758762), (3, 7172508), (4, 5379381), (6, 3586254), (7, 3073932), (9, 2390836), (12, 1793127), (14, 1536966), (18, 1195418), (21, 1024644), (28, 768483), (36, 597709), (42, 512322), (63, 341548), (84, 256161), (103, 208908), (126, 170774), (206, 104454), (252, 85387), (309, 69636), (412, 52227), (618, 34818), (721, 29844), (829, 25956), (927, 23212), (1236, 17409), (1442, 14922), (1658, 12978), (1854, 11606), (2163, 9948), (2487, 8652), (2884, 7461), (3316, 6489), (3708, 5803), (4326, 4974)]