21945644

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 45889536

約数和(自身を除く): 23943892

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 131, 193, 217, 262, 386, 434, 524, 772, 868, 917, 1351, 1834, 2702, 3668, 4061, 5404, 5983, 8122, 11966, 16244, 23932, 25283, 28427, 41881, 50566, 56854, 83762, 101132, 113708, 167524, 176981, 353962, 707924, 783773, 1567546, 3135092, 5486411, 10972822, 21945644]

約数ペア:

[(1, 21945644), (2, 10972822), (4, 5486411), (7, 3135092), (14, 1567546), (28, 783773), (31, 707924), (62, 353962), (124, 176981), (131, 167524), (193, 113708), (217, 101132), (262, 83762), (386, 56854), (434, 50566), (524, 41881), (772, 28427), (868, 25283), (917, 23932), (1351, 16244), (1834, 11966), (2702, 8122), (3668, 5983), (4061, 5404)]