21701984

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{167}}^1$

素因数の和:339

約数の個数: 48

約数和(自身を含む): 44706816

約数和(自身を除く): 23004832

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 131, 167, 248, 262, 334, 496, 524, 668, 992, 1048, 1336, 2096, 2672, 4061, 4192, 5177, 5344, 8122, 10354, 16244, 20708, 21877, 32488, 41416, 43754, 64976, 82832, 87508, 129952, 165664, 175016, 350032, 678187, 700064, 1356374, 2712748, 5425496, 10850992, 21701984]

約数ペア:

[(1, 21701984), (2, 10850992), (4, 5425496), (8, 2712748), (16, 1356374), (31, 700064), (32, 678187), (62, 350032), (124, 175016), (131, 165664), (167, 129952), (248, 87508), (262, 82832), (334, 64976), (496, 43754), (524, 41416), (668, 32488), (992, 21877), (1048, 20708), (1336, 16244), (2096, 10354), (2672, 8122), (4061, 5344), (4192, 5177)]