21557904

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{911}}^1$

素因数の和:968

約数の個数: 80

約数和(自身を含む): 61067520

約数和(自身を除く): 39509616

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 29, 34, 48, 51, 58, 68, 87, 102, 116, 136, 174, 204, 232, 272, 348, 408, 464, 493, 696, 816, 911, 986, 1392, 1479, 1822, 1972, 2733, 2958, 3644, 3944, 5466, 5916, 7288, 7888, 10932, 11832, 14576, 15487, 21864, 23664, 26419, 30974, 43728, 46461, 52838, 61948, 79257, 92922, 105676, 123896, 158514, 185844, 211352, 247792, 317028, 371688, 422704, 449123, 634056, 743376, 898246, 1268112, 1347369, 1796492, 2694738, 3592984, 5389476, 7185968, 10778952, 21557904]

約数ペア:

[(1, 21557904), (2, 10778952), (3, 7185968), (4, 5389476), (6, 3592984), (8, 2694738), (12, 1796492), (16, 1347369), (17, 1268112), (24, 898246), (29, 743376), (34, 634056), (48, 449123), (51, 422704), (58, 371688), (68, 317028), (87, 247792), (102, 211352), (116, 185844), (136, 158514), (174, 123896), (204, 105676), (232, 92922), (272, 79257), (348, 61948), (408, 52838), (464, 46461), (493, 43728), (696, 30974), (816, 26419), (911, 23664), (986, 21864), (1392, 15487), (1479, 14576), (1822, 11832), (1972, 10932), (2733, 7888), (2958, 7288), (3644, 5916), (3944, 5466)]