21386535142

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{991}}^1\times {\mathrm{67021}}^1$

素因数の和:68044

約数の個数: 32

約数和(自身を含む): 38295834624

約数和(自身を除く): 16909299482

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 991, 1982, 6937, 13874, 22793, 45586, 67021, 134042, 159551, 319102, 469147, 938294, 1541483, 3082966, 10790381, 21580762, 66417811, 132835622, 464924677, 929849354, 1527609653, 3055219306, 10693267571, 21386535142]

約数ペア:

[(1, 21386535142), (2, 10693267571), (7, 3055219306), (14, 1527609653), (23, 929849354), (46, 464924677), (161, 132835622), (322, 66417811), (991, 21580762), (1982, 10790381), (6937, 3082966), (13874, 1541483), (22793, 938294), (45586, 469147), (67021, 319102), (134042, 159551)]