20123687997

素因数分解:

$3^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{293}}^1\times {\mathrm{11239}}^1$

素因数の和:11642

約数の個数: 48

約数和(自身を含む): 33680075520

約数和(自身を除く): 13556387523

約数列:

[1, 3, 7, 9, 21, 63, 97, 291, 293, 679, 873, 879, 2037, 2051, 2637, 6111, 6153, 11239, 18459, 28421, 33717, 78673, 85263, 101151, 198947, 236019, 255789, 596841, 708057, 1090183, 1790523, 3270549, 3293027, 7631281, 9811647, 9879081, 22893843, 23051189, 29637243, 68681529, 69153567, 207460701, 319423619, 958270857, 2235965333, 2874812571, 6707895999, 20123687997]

約数ペア:

[(1, 20123687997), (3, 6707895999), (7, 2874812571), (9, 2235965333), (21, 958270857), (63, 319423619), (97, 207460701), (291, 69153567), (293, 68681529), (679, 29637243), (873, 23051189), (879, 22893843), (2037, 9879081), (2051, 9811647), (2637, 7631281), (6111, 3293027), (6153, 3270549), (11239, 1790523), (18459, 1090183), (28421, 708057), (33717, 596841), (78673, 255789), (85263, 236019), (101151, 198947)]