51987873

素因数分解:

$3^1\times 7^2\times {\mathrm{251}}^1\times {\mathrm{1409}}^1$

素因数の和:1677

約数の個数: 24

約数和(自身を含む): 81012960

約数和(自身を除く): 29025087

約数列:

[1, 3, 7, 21, 49, 147, 251, 753, 1409, 1757, 4227, 5271, 9863, 12299, 29589, 36897, 69041, 207123, 353659, 1060977, 2475613, 7426839, 17329291, 51987873]

約数ペア:

[(1, 51987873), (3, 17329291), (7, 7426839), (21, 2475613), (49, 1060977), (147, 353659), (251, 207123), (753, 69041), (1409, 36897), (1757, 29589), (4227, 12299), (5271, 9863)]