21000613930

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{843737}}^1$

素因数の和:843894

約数の個数: 32

約数和(自身を含む): 40094429760

約数和(自身を除く): 19093815830

約数列:

[1, 2, 5, 10, 19, 38, 95, 131, 190, 262, 655, 1310, 2489, 4978, 12445, 24890, 843737, 1687474, 4218685, 8437370, 16031003, 32062006, 80155015, 110529547, 160310030, 221059094, 552647735, 1105295470, 2100061393, 4200122786, 10500306965, 21000613930]

約数ペア:

[(1, 21000613930), (2, 10500306965), (5, 4200122786), (10, 2100061393), (19, 1105295470), (38, 552647735), (95, 221059094), (131, 160310030), (190, 110529547), (262, 80155015), (655, 32062006), (1310, 16031003), (2489, 8437370), (4978, 4218685), (12445, 1687474), (24890, 843737)]