21192224

素因数分解:

$2^5\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:273

約数の個数: 48

約数和(自身を含む): 43182720

約数和(自身を除く): 21990496

約数列:

[1, 2, 4, 8, 16, 32, 79, 83, 101, 158, 166, 202, 316, 332, 404, 632, 664, 808, 1264, 1328, 1616, 2528, 2656, 3232, 6557, 7979, 8383, 13114, 15958, 16766, 26228, 31916, 33532, 52456, 63832, 67064, 104912, 127664, 134128, 209824, 255328, 268256, 662257, 1324514, 2649028, 5298056, 10596112, 21192224]

約数ペア:

[(1, 21192224), (2, 10596112), (4, 5298056), (8, 2649028), (16, 1324514), (32, 662257), (79, 268256), (83, 255328), (101, 209824), (158, 134128), (166, 127664), (202, 104912), (316, 67064), (332, 63832), (404, 52456), (632, 33532), (664, 31916), (808, 26228), (1264, 16766), (1328, 15958), (1616, 13114), (2528, 8383), (2656, 7979), (3232, 6557)]