20909616

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4787}}^1$

素因数の和:4818

約数の個数: 80

約数和(自身を含む): 66495744

約数和(自身を除く): 45586128

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 39, 42, 48, 52, 56, 78, 84, 91, 104, 112, 156, 168, 182, 208, 273, 312, 336, 364, 546, 624, 728, 1092, 1456, 2184, 4368, 4787, 9574, 14361, 19148, 28722, 33509, 38296, 57444, 62231, 67018, 76592, 100527, 114888, 124462, 134036, 186693, 201054, 229776, 248924, 268072, 373386, 402108, 435617, 497848, 536144, 746772, 804216, 871234, 995696, 1306851, 1493544, 1608432, 1742468, 2613702, 2987088, 3484936, 5227404, 6969872, 10454808, 20909616]

約数ペア:

[(1, 20909616), (2, 10454808), (3, 6969872), (4, 5227404), (6, 3484936), (7, 2987088), (8, 2613702), (12, 1742468), (13, 1608432), (14, 1493544), (16, 1306851), (21, 995696), (24, 871234), (26, 804216), (28, 746772), (39, 536144), (42, 497848), (48, 435617), (52, 402108), (56, 373386), (78, 268072), (84, 248924), (91, 229776), (104, 201054), (112, 186693), (156, 134036), (168, 124462), (182, 114888), (208, 100527), (273, 76592), (312, 67018), (336, 62231), (364, 57444), (546, 38296), (624, 33509), (728, 28722), (1092, 19148), (1456, 14361), (2184, 9574), (4368, 4787)]