20572006

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:209

約数の個数: 64

約数和(自身を含む): 41247360

約数和(自身を除く): 20675354

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 61, 91, 109, 119, 122, 182, 218, 221, 238, 427, 442, 763, 793, 854, 1037, 1417, 1526, 1547, 1586, 1853, 2074, 2834, 3094, 3706, 5551, 6649, 7259, 9919, 11102, 12971, 13298, 13481, 14518, 19838, 24089, 25942, 26962, 46543, 48178, 86437, 93086, 94367, 113033, 168623, 172874, 188734, 226066, 337246, 605059, 791231, 1210118, 1469429, 1582462, 2938858, 10286003, 20572006]

約数ペア:

[(1, 20572006), (2, 10286003), (7, 2938858), (13, 1582462), (14, 1469429), (17, 1210118), (26, 791231), (34, 605059), (61, 337246), (91, 226066), (109, 188734), (119, 172874), (122, 168623), (182, 113033), (218, 94367), (221, 93086), (238, 86437), (427, 48178), (442, 46543), (763, 26962), (793, 25942), (854, 24089), (1037, 19838), (1417, 14518), (1526, 13481), (1547, 13298), (1586, 12971), (1853, 11102), (2074, 9919), (2834, 7259), (3094, 6649), (3706, 5551)]