21000201250

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{126317}}^1$

素因数の和:126365

約数の個数: 80

約数和(自身を含む): 47354091840

約数和(自身を除く): 26353890590

約数列:

[1, 2, 5, 7, 10, 14, 19, 25, 35, 38, 50, 70, 95, 125, 133, 175, 190, 250, 266, 350, 475, 625, 665, 875, 950, 1250, 1330, 1750, 2375, 3325, 4375, 4750, 6650, 8750, 11875, 16625, 23750, 33250, 83125, 126317, 166250, 252634, 631585, 884219, 1263170, 1768438, 2400023, 3157925, 4421095, 4800046, 6315850, 8842190, 12000115, 15789625, 16800161, 22105475, 24000230, 31579250, 33600322, 44210950, 60000575, 78948125, 84000805, 110527375, 120001150, 157896250, 168001610, 221054750, 300002875, 420004025, 552636875, 600005750, 840008050, 1105273750, 1500014375, 2100020125, 3000028750, 4200040250, 10500100625, 21000201250]

約数ペア:

[(1, 21000201250), (2, 10500100625), (5, 4200040250), (7, 3000028750), (10, 2100020125), (14, 1500014375), (19, 1105273750), (25, 840008050), (35, 600005750), (38, 552636875), (50, 420004025), (70, 300002875), (95, 221054750), (125, 168001610), (133, 157896250), (175, 120001150), (190, 110527375), (250, 84000805), (266, 78948125), (350, 60000575), (475, 44210950), (625, 33600322), (665, 31579250), (875, 24000230), (950, 22105475), (1250, 16800161), (1330, 15789625), (1750, 12000115), (2375, 8842190), (3325, 6315850), (4375, 4800046), (4750, 4421095), (6650, 3157925), (8750, 2400023), (11875, 1768438), (16625, 1263170), (23750, 884219), (33250, 631585), (83125, 252634), (126317, 166250)]