21489008

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{36299}}^1$

素因数の和:36344

約数の個数: 20

約数和(自身を含む): 42761400

約数和(自身を除く): 21272392

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 36299, 72598, 145196, 290392, 580784, 1343063, 2686126, 5372252, 10744504, 21489008]

約数ペア:

[(1, 21489008), (2, 10744504), (4, 5372252), (8, 2686126), (16, 1343063), (37, 580784), (74, 290392), (148, 145196), (296, 72598), (592, 36299)]