21326504

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{661}}^1$

素因数の和:813

約数の個数: 32

約数和(自身を含む): 41507400

約数和(自身を除く): 20180896

約数列:

[1, 2, 4, 8, 37, 74, 109, 148, 218, 296, 436, 661, 872, 1322, 2644, 4033, 5288, 8066, 16132, 24457, 32264, 48914, 72049, 97828, 144098, 195656, 288196, 576392, 2665813, 5331626, 10663252, 21326504]

約数ペア:

[(1, 21326504), (2, 10663252), (4, 5331626), (8, 2665813), (37, 576392), (74, 288196), (109, 195656), (148, 144098), (218, 97828), (296, 72049), (436, 48914), (661, 32264), (872, 24457), (1322, 16132), (2644, 8066), (4033, 5288)]