21204549240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{1297}}^1\times {\mathrm{19463}}^1$

素因数の和:20781

約数の個数: 128

約数和(自身を含む): 72761103360

約数和(自身を除く): 51556554120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 1297, 2594, 3891, 5188, 6485, 7782, 9079, 10376, 12970, 15564, 18158, 19455, 19463, 25940, 27237, 31128, 36316, 38910, 38926, 45395, 51880, 54474, 58389, 72632, 77820, 77852, 90790, 97315, 108948, 116778, 136185, 136241, 155640, 155704, 181580, 194630, 217896, 233556, 272370, 272482, 291945, 363160, 389260, 408723, 467112, 544740, 544964, 583890, 681205, 778520, 817446, 1089480, 1089928, 1167780, 1362410, 1634892, 2043615, 2335560, 2724820, 3269784, 4087230, 5449640, 8174460, 16348920, 25243511, 50487022, 75730533, 100974044, 126217555, 151461066, 176704577, 201948088, 252435110, 302922132, 353409154, 378652665, 504870220, 530113731, 605844264, 706818308, 757305330, 883522885, 1009740440, 1060227462, 1413636616, 1514610660, 1767045770, 2120454924, 2650568655, 3029221320, 3534091540, 4240909848, 5301137310, 7068183080, 10602274620, 21204549240]

約数ペア:

[(1, 21204549240), (2, 10602274620), (3, 7068183080), (4, 5301137310), (5, 4240909848), (6, 3534091540), (7, 3029221320), (8, 2650568655), (10, 2120454924), (12, 1767045770), (14, 1514610660), (15, 1413636616), (20, 1060227462), (21, 1009740440), (24, 883522885), (28, 757305330), (30, 706818308), (35, 605844264), (40, 530113731), (42, 504870220), (56, 378652665), (60, 353409154), (70, 302922132), (84, 252435110), (105, 201948088), (120, 176704577), (140, 151461066), (168, 126217555), (210, 100974044), (280, 75730533), (420, 50487022), (840, 25243511), (1297, 16348920), (2594, 8174460), (3891, 5449640), (5188, 4087230), (6485, 3269784), (7782, 2724820), (9079, 2335560), (10376, 2043615), (12970, 1634892), (15564, 1362410), (18158, 1167780), (19455, 1089928), (19463, 1089480), (25940, 817446), (27237, 778520), (31128, 681205), (36316, 583890), (38910, 544964), (38926, 544740), (45395, 467112), (51880, 408723), (54474, 389260), (58389, 363160), (72632, 291945), (77820, 272482), (77852, 272370), (90790, 233556), (97315, 217896), (108948, 194630), (116778, 181580), (136185, 155704), (136241, 155640)]