21329152

素因数分解:

$2^8\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:88

約数の個数: 108

約数和(自身を含む): 50497020

約数和(自身を除く): 29167868

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 29, 32, 34, 52, 58, 64, 68, 104, 116, 128, 136, 169, 208, 221, 232, 256, 272, 338, 377, 416, 442, 464, 493, 544, 676, 754, 832, 884, 928, 986, 1088, 1352, 1508, 1664, 1768, 1856, 1972, 2176, 2704, 2873, 3016, 3328, 3536, 3712, 3944, 4352, 4901, 5408, 5746, 6032, 6409, 7072, 7424, 7888, 9802, 10816, 11492, 12064, 12818, 14144, 15776, 19604, 21632, 22984, 24128, 25636, 28288, 31552, 39208, 43264, 45968, 48256, 51272, 56576, 63104, 78416, 83317, 91936, 96512, 102544, 126208, 156832, 166634, 183872, 205088, 313664, 333268, 367744, 410176, 627328, 666536, 735488, 820352, 1254656, 1333072, 1640704, 2666144, 5332288, 10664576, 21329152]

約数ペア:

[(1, 21329152), (2, 10664576), (4, 5332288), (8, 2666144), (13, 1640704), (16, 1333072), (17, 1254656), (26, 820352), (29, 735488), (32, 666536), (34, 627328), (52, 410176), (58, 367744), (64, 333268), (68, 313664), (104, 205088), (116, 183872), (128, 166634), (136, 156832), (169, 126208), (208, 102544), (221, 96512), (232, 91936), (256, 83317), (272, 78416), (338, 63104), (377, 56576), (416, 51272), (442, 48256), (464, 45968), (493, 43264), (544, 39208), (676, 31552), (754, 28288), (832, 25636), (884, 24128), (928, 22984), (986, 21632), (1088, 19604), (1352, 15776), (1508, 14144), (1664, 12818), (1768, 12064), (1856, 11492), (1972, 10816), (2176, 9802), (2704, 7888), (2873, 7424), (3016, 7072), (3328, 6409), (3536, 6032), (3712, 5746), (3944, 5408), (4352, 4901)]