21986748

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{127}}^1\times {\mathrm{229}}^1$

素因数の和:376

約数の個数: 96

約数和(自身を含む): 65945600

約数和(自身を除く): 43958852

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 127, 189, 229, 252, 254, 378, 381, 458, 508, 687, 756, 762, 889, 916, 1143, 1374, 1524, 1603, 1778, 2061, 2286, 2667, 2748, 3206, 3429, 3556, 4122, 4572, 4809, 5334, 6183, 6412, 6858, 8001, 8244, 9618, 10668, 12366, 13716, 14427, 16002, 19236, 24003, 24732, 28854, 29083, 32004, 43281, 48006, 57708, 58166, 86562, 87249, 96012, 116332, 173124, 174498, 203581, 261747, 348996, 407162, 523494, 610743, 785241, 814324, 1046988, 1221486, 1570482, 1832229, 2442972, 3140964, 3664458, 5496687, 7328916, 10993374, 21986748]

約数ペア:

[(1, 21986748), (2, 10993374), (3, 7328916), (4, 5496687), (6, 3664458), (7, 3140964), (9, 2442972), (12, 1832229), (14, 1570482), (18, 1221486), (21, 1046988), (27, 814324), (28, 785241), (36, 610743), (42, 523494), (54, 407162), (63, 348996), (84, 261747), (108, 203581), (126, 174498), (127, 173124), (189, 116332), (229, 96012), (252, 87249), (254, 86562), (378, 58166), (381, 57708), (458, 48006), (508, 43281), (687, 32004), (756, 29083), (762, 28854), (889, 24732), (916, 24003), (1143, 19236), (1374, 16002), (1524, 14427), (1603, 13716), (1778, 12366), (2061, 10668), (2286, 9618), (2667, 8244), (2748, 8001), (3206, 6858), (3429, 6412), (3556, 6183), (4122, 5334), (4572, 4809)]