221763885

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:434

約数の個数: 64

約数和(自身を含む): 416047104

約数和(自身を除く): 194283219

約数列:

[1, 3, 5, 7, 15, 21, 35, 71, 105, 151, 197, 213, 355, 453, 497, 591, 755, 985, 1057, 1065, 1379, 1491, 2265, 2485, 2955, 3171, 4137, 5285, 6895, 7455, 10721, 13987, 15855, 20685, 29747, 32163, 41961, 53605, 69935, 75047, 89241, 97909, 148735, 160815, 208229, 209805, 225141, 293727, 375235, 446205, 489545, 624687, 1041145, 1125705, 1468635, 2112037, 3123435, 6336111, 10560185, 14784259, 31680555, 44352777, 73921295, 221763885]

約数ペア:

[(1, 221763885), (3, 73921295), (5, 44352777), (7, 31680555), (15, 14784259), (21, 10560185), (35, 6336111), (71, 3123435), (105, 2112037), (151, 1468635), (197, 1125705), (213, 1041145), (355, 624687), (453, 489545), (497, 446205), (591, 375235), (755, 293727), (985, 225141), (1057, 209805), (1065, 208229), (1379, 160815), (1491, 148735), (2265, 97909), (2485, 89241), (2955, 75047), (3171, 69935), (4137, 53605), (5285, 41961), (6895, 32163), (7455, 29747), (10721, 20685), (13987, 15855)]