21120721104

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2027719}}^1$

素因数の和:2027768

約数の個数: 80

約数和(自身を含む): 64367943680

約数和(自身を除く): 43247222576

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 31, 42, 48, 56, 62, 84, 93, 112, 124, 168, 186, 217, 248, 336, 372, 434, 496, 651, 744, 868, 1302, 1488, 1736, 2604, 3472, 5208, 10416, 2027719, 4055438, 6083157, 8110876, 12166314, 14194033, 16221752, 24332628, 28388066, 32443504, 42582099, 48665256, 56776132, 62859289, 85164198, 97330512, 113552264, 125718578, 170328396, 188577867, 227104528, 251437156, 340656792, 377155734, 440015023, 502874312, 681313584, 754311468, 880030046, 1005748624, 1320045069, 1508622936, 1760060092, 2640090138, 3017245872, 3520120184, 5280180276, 7040240368, 10560360552, 21120721104]

約数ペア:

[(1, 21120721104), (2, 10560360552), (3, 7040240368), (4, 5280180276), (6, 3520120184), (7, 3017245872), (8, 2640090138), (12, 1760060092), (14, 1508622936), (16, 1320045069), (21, 1005748624), (24, 880030046), (28, 754311468), (31, 681313584), (42, 502874312), (48, 440015023), (56, 377155734), (62, 340656792), (84, 251437156), (93, 227104528), (112, 188577867), (124, 170328396), (168, 125718578), (186, 113552264), (217, 97330512), (248, 85164198), (336, 62859289), (372, 56776132), (434, 48665256), (496, 42582099), (651, 32443504), (744, 28388066), (868, 24332628), (1302, 16221752), (1488, 14194033), (1736, 12166314), (2604, 8110876), (3472, 6083157), (5208, 4055438), (10416, 2027719)]