18461984

素因数分解:

$2^5\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:265

約数の個数: 48

約数和(自身を含む): 37699200

約数和(自身を除く): 19237216

約数列:

[1, 2, 4, 8, 16, 32, 67, 79, 109, 134, 158, 218, 268, 316, 436, 536, 632, 872, 1072, 1264, 1744, 2144, 2528, 3488, 5293, 7303, 8611, 10586, 14606, 17222, 21172, 29212, 34444, 42344, 58424, 68888, 84688, 116848, 137776, 169376, 233696, 275552, 576937, 1153874, 2307748, 4615496, 9230992, 18461984]

約数ペア:

[(1, 18461984), (2, 9230992), (4, 4615496), (8, 2307748), (16, 1153874), (32, 576937), (67, 275552), (79, 233696), (109, 169376), (134, 137776), (158, 116848), (218, 84688), (268, 68888), (316, 58424), (436, 42344), (536, 34444), (632, 29212), (872, 21172), (1072, 17222), (1264, 14606), (1744, 10586), (2144, 8611), (2528, 7303), (3488, 5293)]