21788364

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7351}}^1$

素因数の和:7390

約数の個数: 48

約数和(自身を含む): 57639680

約数和(自身を除く): 35851316

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 228, 247, 494, 741, 988, 1482, 2964, 7351, 14702, 22053, 29404, 44106, 88212, 95563, 139669, 191126, 279338, 286689, 382252, 419007, 558676, 573378, 838014, 1146756, 1676028, 1815697, 3631394, 5447091, 7262788, 10894182, 21788364]

約数ペア:

[(1, 21788364), (2, 10894182), (3, 7262788), (4, 5447091), (6, 3631394), (12, 1815697), (13, 1676028), (19, 1146756), (26, 838014), (38, 573378), (39, 558676), (52, 419007), (57, 382252), (76, 286689), (78, 279338), (114, 191126), (156, 139669), (228, 95563), (247, 88212), (494, 44106), (741, 29404), (988, 22053), (1482, 14702), (2964, 7351)]