18984056

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{293}}^1$

素因数の和:408

約数の個数: 64

約数和(自身を含む): 44452800

約数和(自身を除く): 25468744

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 89, 91, 104, 178, 182, 293, 356, 364, 586, 623, 712, 728, 1157, 1172, 1246, 2051, 2314, 2344, 2492, 3809, 4102, 4628, 4984, 7618, 8099, 8204, 9256, 15236, 16198, 16408, 26077, 26663, 30472, 32396, 52154, 53326, 64792, 104308, 106652, 182539, 208616, 213304, 339001, 365078, 678002, 730156, 1356004, 1460312, 2373007, 2712008, 4746014, 9492028, 18984056]

約数ペア:

[(1, 18984056), (2, 9492028), (4, 4746014), (7, 2712008), (8, 2373007), (13, 1460312), (14, 1356004), (26, 730156), (28, 678002), (52, 365078), (56, 339001), (89, 213304), (91, 208616), (104, 182539), (178, 106652), (182, 104308), (293, 64792), (356, 53326), (364, 52154), (586, 32396), (623, 30472), (712, 26663), (728, 26077), (1157, 16408), (1172, 16198), (1246, 15236), (2051, 9256), (2314, 8204), (2344, 8099), (2492, 7618), (3809, 4984), (4102, 4628)]