21999292

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{409}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 47113920

約数和(自身を除く): 25114628

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 113, 119, 226, 238, 409, 452, 476, 791, 818, 1582, 1636, 1921, 2863, 3164, 3842, 5726, 6953, 7684, 11452, 13447, 13906, 26894, 27812, 46217, 48671, 53788, 92434, 97342, 184868, 194684, 323519, 647038, 785689, 1294076, 1571378, 3142756, 5499823, 10999646, 21999292]

約数ペア:

[(1, 21999292), (2, 10999646), (4, 5499823), (7, 3142756), (14, 1571378), (17, 1294076), (28, 785689), (34, 647038), (68, 323519), (113, 194684), (119, 184868), (226, 97342), (238, 92434), (409, 53788), (452, 48671), (476, 46217), (791, 27812), (818, 26894), (1582, 13906), (1636, 13447), (1921, 11452), (2863, 7684), (3164, 6953), (3842, 5726)]