21395472

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1721}}^1$

素因数の和:1776

約数の個数: 80

約数和(自身を含む): 64912512

約数和(自身を除く): 43517040

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 37, 42, 48, 56, 74, 84, 111, 112, 148, 168, 222, 259, 296, 336, 444, 518, 592, 777, 888, 1036, 1554, 1721, 1776, 2072, 3108, 3442, 4144, 5163, 6216, 6884, 10326, 12047, 12432, 13768, 20652, 24094, 27536, 36141, 41304, 48188, 63677, 72282, 82608, 96376, 127354, 144564, 191031, 192752, 254708, 289128, 382062, 445739, 509416, 578256, 764124, 891478, 1018832, 1337217, 1528248, 1782956, 2674434, 3056496, 3565912, 5348868, 7131824, 10697736, 21395472]

約数ペア:

[(1, 21395472), (2, 10697736), (3, 7131824), (4, 5348868), (6, 3565912), (7, 3056496), (8, 2674434), (12, 1782956), (14, 1528248), (16, 1337217), (21, 1018832), (24, 891478), (28, 764124), (37, 578256), (42, 509416), (48, 445739), (56, 382062), (74, 289128), (84, 254708), (111, 192752), (112, 191031), (148, 144564), (168, 127354), (222, 96376), (259, 82608), (296, 72282), (336, 63677), (444, 48188), (518, 41304), (592, 36141), (777, 27536), (888, 24094), (1036, 20652), (1554, 13768), (1721, 12432), (1776, 12047), (2072, 10326), (3108, 6884), (3442, 6216), (4144, 5163)]