81728409

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{2003}}^1$

素因数の和:2109

約数の個数: 32

約数和(自身を含む): 130821120

約数和(自身を除く): 49092711

約数列:

[1, 3, 7, 21, 29, 67, 87, 201, 203, 469, 609, 1407, 1943, 2003, 5829, 6009, 13601, 14021, 40803, 42063, 58087, 134201, 174261, 402603, 406609, 939407, 1219827, 2818221, 3891829, 11675487, 27242803, 81728409]

約数ペア:

[(1, 81728409), (3, 27242803), (7, 11675487), (21, 3891829), (29, 2818221), (67, 1219827), (87, 939407), (201, 406609), (203, 402603), (469, 174261), (609, 134201), (1407, 58087), (1943, 42063), (2003, 40803), (5829, 14021), (6009, 13601)]