21739155

素因数分解:

$3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1$

素因数の和:395

約数の個数: 32

約数和(自身を含む): 35825664

約数和(自身を除く): 14086509

約数列:

[1, 3, 5, 15, 67, 97, 201, 223, 291, 335, 485, 669, 1005, 1115, 1455, 3345, 6499, 14941, 19497, 21631, 32495, 44823, 64893, 74705, 97485, 108155, 224115, 324465, 1449277, 4347831, 7246385, 21739155]

約数ペア:

[(1, 21739155), (3, 7246385), (5, 4347831), (15, 1449277), (67, 324465), (97, 224115), (201, 108155), (223, 97485), (291, 74705), (335, 64893), (485, 44823), (669, 32495), (1005, 21631), (1115, 19497), (1455, 14941), (3345, 6499)]