81576159

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 133785600

約数和(自身を除く): 52209441

約数列:

[1, 3, 7, 21, 29, 31, 87, 93, 149, 203, 217, 447, 609, 651, 841, 899, 1043, 2523, 2697, 3129, 4321, 4619, 5887, 6293, 12963, 13857, 17661, 18879, 26071, 30247, 32333, 78213, 90741, 96999, 125309, 133951, 182497, 375927, 401853, 547491, 877163, 937657, 2631489, 2812971, 3884579, 11653737, 27192053, 81576159]

約数ペア:

[(1, 81576159), (3, 27192053), (7, 11653737), (21, 3884579), (29, 2812971), (31, 2631489), (87, 937657), (93, 877163), (149, 547491), (203, 401853), (217, 375927), (447, 182497), (609, 133951), (651, 125309), (841, 96999), (899, 90741), (1043, 78213), (2523, 32333), (2697, 30247), (3129, 26071), (4321, 18879), (4619, 17661), (5887, 13857), (6293, 12963)]