19424223

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{641}}^1$

素因数の和:704

約数の個数: 48

約数和(自身を含む): 35520576

約数和(自身を除く): 16096353

約数列:

[1, 3, 7, 9, 13, 21, 37, 39, 63, 91, 111, 117, 259, 273, 333, 481, 641, 777, 819, 1443, 1923, 2331, 3367, 4329, 4487, 5769, 8333, 10101, 13461, 23717, 24999, 30303, 40383, 58331, 71151, 74997, 166019, 174993, 213453, 308321, 498057, 524979, 924963, 1494171, 2158247, 2774889, 6474741, 19424223]

約数ペア:

[(1, 19424223), (3, 6474741), (7, 2774889), (9, 2158247), (13, 1494171), (21, 924963), (37, 524979), (39, 498057), (63, 308321), (91, 213453), (111, 174993), (117, 166019), (259, 74997), (273, 71151), (333, 58331), (481, 40383), (641, 30303), (777, 24999), (819, 23717), (1443, 13461), (1923, 10101), (2331, 8333), (3367, 5769), (4329, 4487)]