19909188

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2239}}^1$

素因数の和:2281

約数の個数: 72

約数和(自身を含む): 57075200

約数和(自身を除く): 37166012

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 76, 78, 114, 117, 156, 171, 228, 234, 247, 342, 468, 494, 684, 741, 988, 1482, 2223, 2239, 2964, 4446, 4478, 6717, 8892, 8956, 13434, 20151, 26868, 29107, 40302, 42541, 58214, 80604, 85082, 87321, 116428, 127623, 170164, 174642, 255246, 261963, 349284, 382869, 510492, 523926, 553033, 765738, 1047852, 1106066, 1531476, 1659099, 2212132, 3318198, 4977297, 6636396, 9954594, 19909188]

約数ペア:

[(1, 19909188), (2, 9954594), (3, 6636396), (4, 4977297), (6, 3318198), (9, 2212132), (12, 1659099), (13, 1531476), (18, 1106066), (19, 1047852), (26, 765738), (36, 553033), (38, 523926), (39, 510492), (52, 382869), (57, 349284), (76, 261963), (78, 255246), (114, 174642), (117, 170164), (156, 127623), (171, 116428), (228, 87321), (234, 85082), (247, 80604), (342, 58214), (468, 42541), (494, 40302), (684, 29107), (741, 26868), (988, 20151), (1482, 13434), (2223, 8956), (2239, 8892), (2964, 6717), (4446, 4478)]