21147744

素因数分解:

$2^5\times 3^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:212

約数の個数: 96

約数和(自身を含む): 58544640

約数和(自身を除く): 37396896

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 43, 47, 48, 86, 94, 96, 109, 129, 141, 172, 188, 218, 258, 282, 327, 344, 376, 436, 516, 564, 654, 688, 752, 872, 1032, 1128, 1308, 1376, 1504, 1744, 2021, 2064, 2256, 2616, 3488, 4042, 4128, 4512, 4687, 5123, 5232, 6063, 8084, 9374, 10246, 10464, 12126, 14061, 15369, 16168, 18748, 20492, 24252, 28122, 30738, 32336, 37496, 40984, 48504, 56244, 61476, 64672, 74992, 81968, 97008, 112488, 122952, 149984, 163936, 194016, 220289, 224976, 245904, 440578, 449952, 491808, 660867, 881156, 1321734, 1762312, 2643468, 3524624, 5286936, 7049248, 10573872, 21147744]

約数ペア:

[(1, 21147744), (2, 10573872), (3, 7049248), (4, 5286936), (6, 3524624), (8, 2643468), (12, 1762312), (16, 1321734), (24, 881156), (32, 660867), (43, 491808), (47, 449952), (48, 440578), (86, 245904), (94, 224976), (96, 220289), (109, 194016), (129, 163936), (141, 149984), (172, 122952), (188, 112488), (218, 97008), (258, 81968), (282, 74992), (327, 64672), (344, 61476), (376, 56244), (436, 48504), (516, 40984), (564, 37496), (654, 32336), (688, 30738), (752, 28122), (872, 24252), (1032, 20492), (1128, 18748), (1308, 16168), (1376, 15369), (1504, 14061), (1744, 12126), (2021, 10464), (2064, 10246), (2256, 9374), (2616, 8084), (3488, 6063), (4042, 5232), (4128, 5123), (4512, 4687)]