21669505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{30307}}^1$

素因数の和:30336

約数の個数: 16

約数和(自身を含む): 30550464

約数和(自身を除く): 8880959

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 30307, 151535, 333377, 393991, 1666885, 1969955, 4333901, 21669505]

約数ペア:

[(1, 21669505), (5, 4333901), (11, 1969955), (13, 1666885), (55, 393991), (65, 333377), (143, 151535), (715, 30307)]