21106488

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1109}}^1$

素因数の和:1192

約数の個数: 64

約数和(自身を含む): 57808800

約数和(自身を除く): 36702312

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 61, 78, 104, 122, 156, 183, 244, 312, 366, 488, 732, 793, 1109, 1464, 1586, 2218, 2379, 3172, 3327, 4436, 4758, 6344, 6654, 8872, 9516, 13308, 14417, 19032, 26616, 28834, 43251, 57668, 67649, 86502, 115336, 135298, 173004, 202947, 270596, 346008, 405894, 541192, 811788, 879437, 1623576, 1758874, 2638311, 3517748, 5276622, 7035496, 10553244, 21106488]

約数ペア:

[(1, 21106488), (2, 10553244), (3, 7035496), (4, 5276622), (6, 3517748), (8, 2638311), (12, 1758874), (13, 1623576), (24, 879437), (26, 811788), (39, 541192), (52, 405894), (61, 346008), (78, 270596), (104, 202947), (122, 173004), (156, 135298), (183, 115336), (244, 86502), (312, 67649), (366, 57668), (488, 43251), (732, 28834), (793, 26616), (1109, 19032), (1464, 14417), (1586, 13308), (2218, 9516), (2379, 8872), (3172, 6654), (3327, 6344), (4436, 4758)]