221575263

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47743}}^1$

素因数の和:47783

約数の個数: 32

約数和(自身を含む): 385007616

約数和(自身を除く): 163432353

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 221, 273, 357, 663, 1547, 4641, 47743, 143229, 334201, 620659, 811631, 1002603, 1861977, 2434893, 4344613, 5681417, 10551203, 13033839, 17044251, 31653609, 73858421, 221575263]

約数ペア:

[(1, 221575263), (3, 73858421), (7, 31653609), (13, 17044251), (17, 13033839), (21, 10551203), (39, 5681417), (51, 4344613), (91, 2434893), (119, 1861977), (221, 1002603), (273, 811631), (357, 620659), (663, 334201), (1547, 143229), (4641, 47743)]