20927556

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{461}}^1$

素因数の和:581

約数の個数: 72

約数和(自身を含む): 57681624

約数和(自身を除く): 36754068

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 97, 117, 156, 194, 234, 291, 388, 461, 468, 582, 873, 922, 1164, 1261, 1383, 1746, 1844, 2522, 2766, 3492, 3783, 4149, 5044, 5532, 5993, 7566, 8298, 11349, 11986, 15132, 16596, 17979, 22698, 23972, 35958, 44717, 45396, 53937, 71916, 89434, 107874, 134151, 178868, 215748, 268302, 402453, 536604, 581321, 804906, 1162642, 1609812, 1743963, 2325284, 3487926, 5231889, 6975852, 10463778, 20927556]

約数ペア:

[(1, 20927556), (2, 10463778), (3, 6975852), (4, 5231889), (6, 3487926), (9, 2325284), (12, 1743963), (13, 1609812), (18, 1162642), (26, 804906), (36, 581321), (39, 536604), (52, 402453), (78, 268302), (97, 215748), (117, 178868), (156, 134151), (194, 107874), (234, 89434), (291, 71916), (388, 53937), (461, 45396), (468, 44717), (582, 35958), (873, 23972), (922, 22698), (1164, 17979), (1261, 16596), (1383, 15132), (1746, 11986), (1844, 11349), (2522, 8298), (2766, 7566), (3492, 5993), (3783, 5532), (4149, 5044)]