21000309550

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{34061}}^1$

素因数の和:34162

約数の個数: 96

約数和(自身を含む): 45615830400

約数和(自身を除く): 24615520850

約数列:

[1, 2, 5, 10, 11, 19, 22, 25, 38, 50, 55, 59, 95, 110, 118, 190, 209, 275, 295, 418, 475, 550, 590, 649, 950, 1045, 1121, 1298, 1475, 2090, 2242, 2950, 3245, 5225, 5605, 6490, 10450, 11210, 12331, 16225, 24662, 28025, 32450, 34061, 56050, 61655, 68122, 123310, 170305, 308275, 340610, 374671, 616550, 647159, 749342, 851525, 1294318, 1703050, 1873355, 2009599, 3235795, 3746710, 4019198, 6471590, 7118749, 9366775, 10047995, 14237498, 16178975, 18733550, 20095990, 22105589, 32357950, 35593745, 38182381, 44211178, 50239975, 71187490, 76364762, 100479950, 110527945, 177968725, 190911905, 221055890, 355937450, 381823810, 420006191, 552639725, 840012382, 954559525, 1105279450, 1909119050, 2100030955, 4200061910, 10500154775, 21000309550]

約数ペア:

[(1, 21000309550), (2, 10500154775), (5, 4200061910), (10, 2100030955), (11, 1909119050), (19, 1105279450), (22, 954559525), (25, 840012382), (38, 552639725), (50, 420006191), (55, 381823810), (59, 355937450), (95, 221055890), (110, 190911905), (118, 177968725), (190, 110527945), (209, 100479950), (275, 76364762), (295, 71187490), (418, 50239975), (475, 44211178), (550, 38182381), (590, 35593745), (649, 32357950), (950, 22105589), (1045, 20095990), (1121, 18733550), (1298, 16178975), (1475, 14237498), (2090, 10047995), (2242, 9366775), (2950, 7118749), (3245, 6471590), (5225, 4019198), (5605, 3746710), (6490, 3235795), (10450, 2009599), (11210, 1873355), (12331, 1703050), (16225, 1294318), (24662, 851525), (28025, 749342), (32450, 647159), (34061, 616550), (56050, 374671), (61655, 340610), (68122, 308275), (123310, 170305)]