21000604430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{66947}}^1$

素因数の和:67113

約数の個数: 64

約数和(自身を含む): 43189493760

約数和(自身を除く): 22188889330

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 127, 130, 190, 247, 254, 494, 635, 1235, 1270, 1651, 2413, 2470, 3302, 4826, 8255, 12065, 16510, 24130, 31369, 62738, 66947, 133894, 156845, 313690, 334735, 669470, 870311, 1271993, 1740622, 2543986, 4351555, 6359965, 8502269, 8703110, 12719930, 16535909, 17004538, 33071818, 42511345, 82679545, 85022690, 110529497, 161543111, 165359090, 221058994, 323086222, 552647485, 807715555, 1105294970, 1615431110, 2100060443, 4200120886, 10500302215, 21000604430]

約数ペア:

[(1, 21000604430), (2, 10500302215), (5, 4200120886), (10, 2100060443), (13, 1615431110), (19, 1105294970), (26, 807715555), (38, 552647485), (65, 323086222), (95, 221058994), (127, 165359090), (130, 161543111), (190, 110529497), (247, 85022690), (254, 82679545), (494, 42511345), (635, 33071818), (1235, 17004538), (1270, 16535909), (1651, 12719930), (2413, 8703110), (2470, 8502269), (3302, 6359965), (4826, 4351555), (8255, 2543986), (12065, 1740622), (16510, 1271993), (24130, 870311), (31369, 669470), (62738, 334735), (66947, 313690), (133894, 156845)]