21000586015

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{293}}^1\times {\mathrm{2753}}^1$

素因数の和:3219

約数の個数: 32

約数和(自身を含む): 26116909056

約数和(自身を除く): 5116323041

約数列:

[1, 5, 41, 127, 205, 293, 635, 1465, 2753, 5207, 12013, 13765, 26035, 37211, 60065, 112873, 186055, 349631, 564365, 806629, 1525651, 1748155, 4033145, 7628255, 14334871, 33071789, 71674355, 102441883, 165358945, 512209415, 4200117203, 21000586015]

約数ペア:

[(1, 21000586015), (5, 4200117203), (41, 512209415), (127, 165358945), (205, 102441883), (293, 71674355), (635, 33071789), (1465, 14334871), (2753, 7628255), (5207, 4033145), (12013, 1748155), (13765, 1525651), (26035, 806629), (37211, 564365), (60065, 349631), (112873, 186055)]