21000369670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{131639}}^1$

素因数の和:131749

約数の個数: 64

約数和(自身を含む): 45039836160

約数和(自身を除く): 24039466490

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 53, 70, 86, 106, 215, 265, 301, 371, 430, 530, 602, 742, 1505, 1855, 2279, 3010, 3710, 4558, 11395, 15953, 22790, 31906, 79765, 131639, 159530, 263278, 658195, 921473, 1316390, 1842946, 4607365, 5660477, 6976867, 9214730, 11320954, 13953734, 28302385, 34884335, 39623339, 48838069, 56604770, 69768670, 79246678, 97676138, 198116695, 244190345, 300005281, 396233390, 488380690, 600010562, 1500026405, 2100036967, 3000052810, 4200073934, 10500184835, 21000369670]

約数ペア:

[(1, 21000369670), (2, 10500184835), (5, 4200073934), (7, 3000052810), (10, 2100036967), (14, 1500026405), (35, 600010562), (43, 488380690), (53, 396233390), (70, 300005281), (86, 244190345), (106, 198116695), (215, 97676138), (265, 79246678), (301, 69768670), (371, 56604770), (430, 48838069), (530, 39623339), (602, 34884335), (742, 28302385), (1505, 13953734), (1855, 11320954), (2279, 9214730), (3010, 6976867), (3710, 5660477), (4558, 4607365), (11395, 1842946), (15953, 1316390), (22790, 921473), (31906, 658195), (79765, 263278), (131639, 159530)]