1971135

素因数分解:

$3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:205

約数の個数: 40

約数和(自身を含む): 3670656

約数和(自身を除く): 1699521

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 81, 93, 135, 155, 157, 279, 405, 465, 471, 785, 837, 1395, 1413, 2355, 2511, 4185, 4239, 4867, 7065, 12555, 12717, 14601, 21195, 24335, 43803, 63585, 73005, 131409, 219015, 394227, 657045, 1971135]

約数ペア:

[(1, 1971135), (3, 657045), (5, 394227), (9, 219015), (15, 131409), (27, 73005), (31, 63585), (45, 43803), (81, 24335), (93, 21195), (135, 14601), (155, 12717), (157, 12555), (279, 7065), (405, 4867), (465, 4239), (471, 4185), (785, 2511), (837, 2355), (1395, 1413)]