171421785

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{40961}}^1$

素因数の和:41006

約数の個数: 32

約数和(自身を含む): 314588160

約数和(自身を除く): 143166375

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 93, 135, 155, 279, 465, 837, 1395, 4185, 40961, 122883, 204805, 368649, 614415, 1105947, 1269791, 1843245, 3809373, 5529735, 6348955, 11428119, 19046865, 34284357, 57140595, 171421785]

約数ペア:

[(1, 171421785), (3, 57140595), (5, 34284357), (9, 19046865), (15, 11428119), (27, 6348955), (31, 5529735), (45, 3809373), (93, 1843245), (135, 1269791), (155, 1105947), (279, 614415), (465, 368649), (837, 204805), (1395, 122883), (4185, 40961)]