18213712

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{433}}^1$

素因数の和:691

約数の個数: 40

約数和(自身を含む): 38747520

約数和(自身を除く): 20533808

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 239, 433, 478, 866, 956, 1732, 1912, 2629, 3464, 3824, 4763, 5258, 6928, 9526, 10516, 19052, 21032, 38104, 42064, 76208, 103487, 206974, 413948, 827896, 1138357, 1655792, 2276714, 4553428, 9106856, 18213712]

約数ペア:

[(1, 18213712), (2, 9106856), (4, 4553428), (8, 2276714), (11, 1655792), (16, 1138357), (22, 827896), (44, 413948), (88, 206974), (176, 103487), (239, 76208), (433, 42064), (478, 38104), (866, 21032), (956, 19052), (1732, 10516), (1912, 9526), (2629, 6928), (3464, 5258), (3824, 4763)]