20449065

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:310

約数の個数: 64

約数和(自身を含む): 41029632

約数和(自身を除く): 20580567

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 71, 91, 105, 195, 211, 213, 273, 355, 455, 497, 633, 923, 1055, 1065, 1365, 1477, 1491, 2485, 2743, 2769, 3165, 4431, 4615, 6461, 7385, 7455, 8229, 13715, 13845, 14981, 19201, 19383, 22155, 32305, 41145, 44943, 57603, 74905, 96005, 96915, 104867, 194753, 224715, 288015, 314601, 524335, 584259, 973765, 1363271, 1573005, 2921295, 4089813, 6816355, 20449065]

約数ペア:

[(1, 20449065), (3, 6816355), (5, 4089813), (7, 2921295), (13, 1573005), (15, 1363271), (21, 973765), (35, 584259), (39, 524335), (65, 314601), (71, 288015), (91, 224715), (105, 194753), (195, 104867), (211, 96915), (213, 96005), (273, 74905), (355, 57603), (455, 44943), (497, 41145), (633, 32305), (923, 22155), (1055, 19383), (1065, 19201), (1365, 14981), (1477, 13845), (1491, 13715), (2485, 8229), (2743, 7455), (2769, 7385), (3165, 6461), (4431, 4615)]