20985312

素因数分解:

$2^5\times 3^1\times {\mathrm{47}}^1\times {\mathrm{4651}}^1$

素因数の和:4711

約数の個数: 48

約数和(自身を含む): 56270592

約数和(自身を除く): 35285280

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 47, 48, 94, 96, 141, 188, 282, 376, 564, 752, 1128, 1504, 2256, 4512, 4651, 9302, 13953, 18604, 27906, 37208, 55812, 74416, 111624, 148832, 218597, 223248, 437194, 446496, 655791, 874388, 1311582, 1748776, 2623164, 3497552, 5246328, 6995104, 10492656, 20985312]

約数ペア:

[(1, 20985312), (2, 10492656), (3, 6995104), (4, 5246328), (6, 3497552), (8, 2623164), (12, 1748776), (16, 1311582), (24, 874388), (32, 655791), (47, 446496), (48, 437194), (94, 223248), (96, 218597), (141, 148832), (188, 111624), (282, 74416), (376, 55812), (564, 37208), (752, 27906), (1128, 18604), (1504, 13953), (2256, 9302), (4512, 4651)]