21820056

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{439}}^1$

素因数の和:576

約数の個数: 64

約数和(自身を含む): 58080000

約数和(自身を除く): 36259944

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 109, 114, 152, 218, 228, 327, 436, 439, 456, 654, 872, 878, 1308, 1317, 1756, 2071, 2616, 2634, 3512, 4142, 5268, 6213, 8284, 8341, 10536, 12426, 16568, 16682, 24852, 25023, 33364, 47851, 49704, 50046, 66728, 95702, 100092, 143553, 191404, 200184, 287106, 382808, 574212, 909169, 1148424, 1818338, 2727507, 3636676, 5455014, 7273352, 10910028, 21820056]

約数ペア:

[(1, 21820056), (2, 10910028), (3, 7273352), (4, 5455014), (6, 3636676), (8, 2727507), (12, 1818338), (19, 1148424), (24, 909169), (38, 574212), (57, 382808), (76, 287106), (109, 200184), (114, 191404), (152, 143553), (218, 100092), (228, 95702), (327, 66728), (436, 50046), (439, 49704), (456, 47851), (654, 33364), (872, 25023), (878, 24852), (1308, 16682), (1317, 16568), (1756, 12426), (2071, 10536), (2616, 8341), (2634, 8284), (3512, 6213), (4142, 5268)]