81455283

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{367}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 145739776

約数和(自身を除く): 64284493

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 271, 273, 367, 813, 819, 1101, 1897, 2439, 2569, 3303, 3523, 4771, 5691, 7707, 10569, 14313, 17073, 23121, 24661, 31707, 33397, 42939, 73983, 99457, 100191, 221949, 298371, 300573, 696199, 895113, 1292941, 2088597, 3878823, 6265791, 9050587, 11636469, 27151761, 81455283]

約数ペア:

[(1, 81455283), (3, 27151761), (7, 11636469), (9, 9050587), (13, 6265791), (21, 3878823), (39, 2088597), (63, 1292941), (91, 895113), (117, 696199), (271, 300573), (273, 298371), (367, 221949), (813, 100191), (819, 99457), (1101, 73983), (1897, 42939), (2439, 33397), (2569, 31707), (3303, 24661), (3523, 23121), (4771, 17073), (5691, 14313), (7707, 10569)]