201521285

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{4243}}^1$

素因数の和:4337

約数の個数: 32

約数和(自身を含む): 293345280

約数和(自身を除く): 91823995

約数列:

[1, 5, 7, 23, 35, 59, 115, 161, 295, 413, 805, 1357, 2065, 4243, 6785, 9499, 21215, 29701, 47495, 97589, 148505, 250337, 487945, 683123, 1251685, 1752359, 3415615, 5757751, 8761795, 28788755, 40304257, 201521285]

約数ペア:

[(1, 201521285), (5, 40304257), (7, 28788755), (23, 8761795), (35, 5757751), (59, 3415615), (115, 1752359), (161, 1251685), (295, 683123), (413, 487945), (805, 250337), (1357, 148505), (2065, 97589), (4243, 47495), (6785, 29701), (9499, 21215)]