21679866

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{347}}^1$

素因数の和:460

約数の個数: 64

約数和(自身を含む): 52617600

約数和(自身を除く): 30937734

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 89, 117, 178, 234, 267, 347, 351, 534, 694, 702, 801, 1041, 1157, 1602, 2082, 2314, 2403, 3123, 3471, 4511, 4806, 6246, 6942, 9022, 9369, 10413, 13533, 18738, 20826, 27066, 30883, 31239, 40599, 61766, 62478, 81198, 92649, 121797, 185298, 243594, 277947, 401479, 555894, 802958, 833841, 1204437, 1667682, 2408874, 3613311, 7226622, 10839933, 21679866]

約数ペア:

[(1, 21679866), (2, 10839933), (3, 7226622), (6, 3613311), (9, 2408874), (13, 1667682), (18, 1204437), (26, 833841), (27, 802958), (39, 555894), (54, 401479), (78, 277947), (89, 243594), (117, 185298), (178, 121797), (234, 92649), (267, 81198), (347, 62478), (351, 61766), (534, 40599), (694, 31239), (702, 30883), (801, 27066), (1041, 20826), (1157, 18738), (1602, 13533), (2082, 10413), (2314, 9369), (2403, 9022), (3123, 6942), (3471, 6246), (4511, 4806)]