20843136

素因数分解:

$2^7\times 3^3\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:223

約数の個数: 128

約数和(自身を含む): 63566400

約数和(自身を除く): 42723264

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 37, 48, 54, 64, 72, 74, 96, 108, 111, 128, 144, 148, 163, 192, 216, 222, 288, 296, 326, 333, 384, 432, 444, 489, 576, 592, 652, 666, 864, 888, 978, 999, 1152, 1184, 1304, 1332, 1467, 1728, 1776, 1956, 1998, 2368, 2608, 2664, 2934, 3456, 3552, 3912, 3996, 4401, 4736, 5216, 5328, 5868, 6031, 7104, 7824, 7992, 8802, 10432, 10656, 11736, 12062, 14208, 15648, 15984, 17604, 18093, 20864, 21312, 23472, 24124, 31296, 31968, 35208, 36186, 42624, 46944, 48248, 54279, 62592, 63936, 70416, 72372, 93888, 96496, 108558, 127872, 140832, 144744, 162837, 187776, 192992, 217116, 281664, 289488, 325674, 385984, 434232, 563328, 578976, 651348, 771968, 868464, 1157952, 1302696, 1736928, 2315904, 2605392, 3473856, 5210784, 6947712, 10421568, 20843136]

約数ペア:

[(1, 20843136), (2, 10421568), (3, 6947712), (4, 5210784), (6, 3473856), (8, 2605392), (9, 2315904), (12, 1736928), (16, 1302696), (18, 1157952), (24, 868464), (27, 771968), (32, 651348), (36, 578976), (37, 563328), (48, 434232), (54, 385984), (64, 325674), (72, 289488), (74, 281664), (96, 217116), (108, 192992), (111, 187776), (128, 162837), (144, 144744), (148, 140832), (163, 127872), (192, 108558), (216, 96496), (222, 93888), (288, 72372), (296, 70416), (326, 63936), (333, 62592), (384, 54279), (432, 48248), (444, 46944), (489, 42624), (576, 36186), (592, 35208), (652, 31968), (666, 31296), (864, 24124), (888, 23472), (978, 21312), (999, 20864), (1152, 18093), (1184, 17604), (1304, 15984), (1332, 15648), (1467, 14208), (1728, 12062), (1776, 11736), (1956, 10656), (1998, 10432), (2368, 8802), (2608, 7992), (2664, 7824), (2934, 7104), (3456, 6031), (3552, 5868), (3912, 5328), (3996, 5216), (4401, 4736)]