21916804

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3169}}^1$

素因数の和:3212

約数の個数: 48

約数和(自身を含む): 49705600

約数和(自身を除く): 27788796

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 52, 76, 91, 133, 182, 247, 266, 364, 494, 532, 988, 1729, 3169, 3458, 6338, 6916, 12676, 22183, 41197, 44366, 60211, 82394, 88732, 120422, 164788, 240844, 288379, 421477, 576758, 782743, 842954, 1153516, 1565486, 1685908, 3130972, 5479201, 10958402, 21916804]

約数ペア:

[(1, 21916804), (2, 10958402), (4, 5479201), (7, 3130972), (13, 1685908), (14, 1565486), (19, 1153516), (26, 842954), (28, 782743), (38, 576758), (52, 421477), (76, 288379), (91, 240844), (133, 164788), (182, 120422), (247, 88732), (266, 82394), (364, 60211), (494, 44366), (532, 41197), (988, 22183), (1729, 12676), (3169, 6916), (3458, 6338)]