21371958

素因数分解:

$2^1\times 3^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{751}}^1$

素因数の和:810

約数の個数: 64

約数和(自身を含む): 51978240

約数和(自身を除く): 30606282

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 31, 34, 51, 54, 62, 93, 102, 153, 186, 279, 306, 459, 527, 558, 751, 837, 918, 1054, 1502, 1581, 1674, 2253, 3162, 4506, 4743, 6759, 9486, 12767, 13518, 14229, 20277, 23281, 25534, 28458, 38301, 40554, 46562, 69843, 76602, 114903, 139686, 209529, 229806, 344709, 395777, 419058, 628587, 689418, 791554, 1187331, 1257174, 2374662, 3561993, 7123986, 10685979, 21371958]

約数ペア:

[(1, 21371958), (2, 10685979), (3, 7123986), (6, 3561993), (9, 2374662), (17, 1257174), (18, 1187331), (27, 791554), (31, 689418), (34, 628587), (51, 419058), (54, 395777), (62, 344709), (93, 229806), (102, 209529), (153, 139686), (186, 114903), (279, 76602), (306, 69843), (459, 46562), (527, 40554), (558, 38301), (751, 28458), (837, 25534), (918, 23281), (1054, 20277), (1502, 14229), (1581, 13518), (1674, 12767), (2253, 9486), (3162, 6759), (4506, 4743)]