21969304

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{491}}^1$

素因数の和:568

約数の個数: 64

約数和(自身を含む): 51010560

約数和(自身を除く): 29041256

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 47, 56, 68, 94, 119, 136, 188, 238, 329, 376, 476, 491, 658, 799, 952, 982, 1316, 1598, 1964, 2632, 3196, 3437, 3928, 5593, 6392, 6874, 8347, 11186, 13748, 16694, 22372, 23077, 27496, 33388, 44744, 46154, 58429, 66776, 92308, 116858, 161539, 184616, 233716, 323078, 392309, 467432, 646156, 784618, 1292312, 1569236, 2746163, 3138472, 5492326, 10984652, 21969304]

約数ペア:

[(1, 21969304), (2, 10984652), (4, 5492326), (7, 3138472), (8, 2746163), (14, 1569236), (17, 1292312), (28, 784618), (34, 646156), (47, 467432), (56, 392309), (68, 323078), (94, 233716), (119, 184616), (136, 161539), (188, 116858), (238, 92308), (329, 66776), (376, 58429), (476, 46154), (491, 44744), (658, 33388), (799, 27496), (952, 23077), (982, 22372), (1316, 16694), (1598, 13748), (1964, 11186), (2632, 8347), (3196, 6874), (3437, 6392), (3928, 5593)]