21379932

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2293}}^1$

素因数の和:2347

約数の個数: 72

約数和(自身を含む): 63461216

約数和(自身を除く): 42081284

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 37, 42, 63, 74, 84, 111, 126, 148, 222, 252, 259, 333, 444, 518, 666, 777, 1036, 1332, 1554, 2293, 2331, 3108, 4586, 4662, 6879, 9172, 9324, 13758, 16051, 20637, 27516, 32102, 41274, 48153, 64204, 82548, 84841, 96306, 144459, 169682, 192612, 254523, 288918, 339364, 509046, 577836, 593887, 763569, 1018092, 1187774, 1527138, 1781661, 2375548, 3054276, 3563322, 5344983, 7126644, 10689966, 21379932]

約数ペア:

[(1, 21379932), (2, 10689966), (3, 7126644), (4, 5344983), (6, 3563322), (7, 3054276), (9, 2375548), (12, 1781661), (14, 1527138), (18, 1187774), (21, 1018092), (28, 763569), (36, 593887), (37, 577836), (42, 509046), (63, 339364), (74, 288918), (84, 254523), (111, 192612), (126, 169682), (148, 144459), (222, 96306), (252, 84841), (259, 82548), (333, 64204), (444, 48153), (518, 41274), (666, 32102), (777, 27516), (1036, 20637), (1332, 16051), (1554, 13758), (2293, 9324), (2331, 9172), (3108, 6879), (4586, 4662)]