21499072

素因数分解:

$2^6\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1297}}^1$

素因数の和:1353

約数の個数: 56

約数和(自身を含む): 50113184

約数和(自身を除く): 28614112

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 56, 64, 74, 112, 148, 224, 259, 296, 448, 518, 592, 1036, 1184, 1297, 2072, 2368, 2594, 4144, 5188, 8288, 9079, 10376, 16576, 18158, 20752, 36316, 41504, 47989, 72632, 83008, 95978, 145264, 191956, 290528, 335923, 383912, 581056, 671846, 767824, 1343692, 1535648, 2687384, 3071296, 5374768, 10749536, 21499072]

約数ペア:

[(1, 21499072), (2, 10749536), (4, 5374768), (7, 3071296), (8, 2687384), (14, 1535648), (16, 1343692), (28, 767824), (32, 671846), (37, 581056), (56, 383912), (64, 335923), (74, 290528), (112, 191956), (148, 145264), (224, 95978), (259, 83008), (296, 72632), (448, 47989), (518, 41504), (592, 36316), (1036, 20752), (1184, 18158), (1297, 16576), (2072, 10376), (2368, 9079), (2594, 8288), (4144, 5188)]