21332325

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{179}}^1\times {\mathrm{227}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 40711680

約数和(自身を除く): 19379355

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 179, 227, 525, 537, 681, 895, 1135, 1253, 1589, 2685, 3405, 3759, 4475, 4767, 5675, 6265, 7945, 13425, 17025, 18795, 23835, 31325, 39725, 40633, 93975, 119175, 121899, 203165, 284431, 609495, 853293, 1015825, 1422155, 3047475, 4266465, 7110775, 21332325]

約数ペア:

[(1, 21332325), (3, 7110775), (5, 4266465), (7, 3047475), (15, 1422155), (21, 1015825), (25, 853293), (35, 609495), (75, 284431), (105, 203165), (175, 121899), (179, 119175), (227, 93975), (525, 40633), (537, 39725), (681, 31325), (895, 23835), (1135, 18795), (1253, 17025), (1589, 13425), (2685, 7945), (3405, 6265), (3759, 5675), (4475, 4767)]