21772905

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2693}}^1$

素因数の和:2726

約数の個数: 48

約数和(自身を含む): 44224704

約数和(自身を除く): 22451799

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 49, 55, 77, 105, 147, 165, 231, 245, 385, 539, 735, 1155, 1617, 2693, 2695, 8079, 8085, 13465, 18851, 29623, 40395, 56553, 88869, 94255, 131957, 148115, 207361, 282765, 395871, 444345, 622083, 659785, 1036805, 1451527, 1979355, 3110415, 4354581, 7257635, 21772905]

約数ペア:

[(1, 21772905), (3, 7257635), (5, 4354581), (7, 3110415), (11, 1979355), (15, 1451527), (21, 1036805), (33, 659785), (35, 622083), (49, 444345), (55, 395871), (77, 282765), (105, 207361), (147, 148115), (165, 131957), (231, 94255), (245, 88869), (385, 56553), (539, 40395), (735, 29623), (1155, 18851), (1617, 13465), (2693, 8085), (2695, 8079)]