21708736

素因数分解:

$2^6\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1031}}^1$

素因数の和:1097

約数の個数: 56

約数和(自身を含む): 50328576

約数和(自身を除く): 28619840

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 56, 64, 94, 112, 188, 224, 329, 376, 448, 658, 752, 1031, 1316, 1504, 2062, 2632, 3008, 4124, 5264, 7217, 8248, 10528, 14434, 16496, 21056, 28868, 32992, 48457, 57736, 65984, 96914, 115472, 193828, 230944, 339199, 387656, 461888, 678398, 775312, 1356796, 1550624, 2713592, 3101248, 5427184, 10854368, 21708736]

約数ペア:

[(1, 21708736), (2, 10854368), (4, 5427184), (7, 3101248), (8, 2713592), (14, 1550624), (16, 1356796), (28, 775312), (32, 678398), (47, 461888), (56, 387656), (64, 339199), (94, 230944), (112, 193828), (188, 115472), (224, 96914), (329, 65984), (376, 57736), (448, 48457), (658, 32992), (752, 28868), (1031, 21056), (1316, 16496), (1504, 14434), (2062, 10528), (2632, 8248), (3008, 7217), (4124, 5264)]