421139979

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:270

約数の個数: 80

約数和(自身を含む): 708390144

約数和(自身を除く): 287250165

約数列:

[1, 3, 9, 13, 27, 39, 43, 71, 81, 117, 129, 131, 213, 351, 387, 393, 559, 639, 923, 1053, 1161, 1179, 1677, 1703, 1917, 2769, 3053, 3483, 3537, 5031, 5109, 5633, 5751, 8307, 9159, 9301, 10611, 15093, 15327, 16899, 24921, 27477, 27903, 39689, 45279, 45981, 50697, 73229, 74763, 82431, 83709, 119067, 120913, 137943, 152091, 219687, 247293, 251127, 357201, 362739, 399943, 456273, 659061, 753381, 1071603, 1088217, 1199829, 1977183, 3214809, 3264651, 3599487, 5199259, 5931549, 9793953, 10798461, 15597777, 32395383, 46793331, 140379993, 421139979]

約数ペア:

[(1, 421139979), (3, 140379993), (9, 46793331), (13, 32395383), (27, 15597777), (39, 10798461), (43, 9793953), (71, 5931549), (81, 5199259), (117, 3599487), (129, 3264651), (131, 3214809), (213, 1977183), (351, 1199829), (387, 1088217), (393, 1071603), (559, 753381), (639, 659061), (923, 456273), (1053, 399943), (1161, 362739), (1179, 357201), (1677, 251127), (1703, 247293), (1917, 219687), (2769, 152091), (3053, 137943), (3483, 120913), (3537, 119067), (5031, 83709), (5109, 82431), (5633, 74763), (5751, 73229), (8307, 50697), (9159, 45981), (9301, 45279), (10611, 39689), (15093, 27903), (15327, 27477), (16899, 24921)]