20984128

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{727}}^1$

素因数の和:791

約数の個数: 56

約数和(自身を含む): 46597824

約数和(自身を除く): 25613696

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 41, 44, 64, 82, 88, 164, 176, 328, 352, 451, 656, 704, 727, 902, 1312, 1454, 1804, 2624, 2908, 3608, 5816, 7216, 7997, 11632, 14432, 15994, 23264, 28864, 29807, 31988, 46528, 59614, 63976, 119228, 127952, 238456, 255904, 327877, 476912, 511808, 655754, 953824, 1311508, 1907648, 2623016, 5246032, 10492064, 20984128]

約数ペア:

[(1, 20984128), (2, 10492064), (4, 5246032), (8, 2623016), (11, 1907648), (16, 1311508), (22, 953824), (32, 655754), (41, 511808), (44, 476912), (64, 327877), (82, 255904), (88, 238456), (164, 127952), (176, 119228), (328, 63976), (352, 59614), (451, 46528), (656, 31988), (704, 29807), (727, 28864), (902, 23264), (1312, 15994), (1454, 14432), (1804, 11632), (2624, 7997), (2908, 7216), (3608, 5816)]