21076192

素因数分解:

$2^5\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:140

約数の個数: 72

約数和(自身を含む): 45954216

約数和(自身を除く): 24878024

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 43, 53, 68, 86, 106, 136, 172, 212, 272, 289, 344, 424, 544, 578, 688, 731, 848, 901, 1156, 1376, 1462, 1696, 1802, 2279, 2312, 2924, 3604, 4558, 4624, 5848, 7208, 9116, 9248, 11696, 12427, 14416, 15317, 18232, 23392, 24854, 28832, 30634, 36464, 38743, 49708, 61268, 72928, 77486, 99416, 122536, 154972, 198832, 245072, 309944, 397664, 490144, 619888, 658631, 1239776, 1317262, 2634524, 5269048, 10538096, 21076192]

約数ペア:

[(1, 21076192), (2, 10538096), (4, 5269048), (8, 2634524), (16, 1317262), (17, 1239776), (32, 658631), (34, 619888), (43, 490144), (53, 397664), (68, 309944), (86, 245072), (106, 198832), (136, 154972), (172, 122536), (212, 99416), (272, 77486), (289, 72928), (344, 61268), (424, 49708), (544, 38743), (578, 36464), (688, 30634), (731, 28832), (848, 24854), (901, 23392), (1156, 18232), (1376, 15317), (1462, 14416), (1696, 12427), (1802, 11696), (2279, 9248), (2312, 9116), (2924, 7208), (3604, 5848), (4558, 4624)]