19118372

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{991}}^1$

素因数の和:1068

約数の個数: 48

約数和(自身を含む): 41997312

約数和(自身を除く): 22878940

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 53, 91, 106, 182, 212, 364, 371, 689, 742, 991, 1378, 1484, 1982, 2756, 3964, 4823, 6937, 9646, 12883, 13874, 19292, 25766, 27748, 51532, 52523, 90181, 105046, 180362, 210092, 360724, 367661, 682799, 735322, 1365598, 1470644, 2731196, 4779593, 9559186, 19118372]

約数ペア:

[(1, 19118372), (2, 9559186), (4, 4779593), (7, 2731196), (13, 1470644), (14, 1365598), (26, 735322), (28, 682799), (52, 367661), (53, 360724), (91, 210092), (106, 180362), (182, 105046), (212, 90181), (364, 52523), (371, 51532), (689, 27748), (742, 25766), (991, 19292), (1378, 13874), (1484, 12883), (1982, 9646), (2756, 6937), (3964, 4823)]