221574381

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{133559}}^1$

素因数の和:133648

約数の個数: 16

約数和(自身を含む): 341913600

約数和(自身を除く): 120339219

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 133559, 400677, 934913, 2804739, 10551161, 31653483, 73858127, 221574381]

約数ペア:

[(1, 221574381), (3, 73858127), (7, 31653483), (21, 10551161), (79, 2804739), (237, 934913), (553, 400677), (1659, 133559)]