21897536

素因数分解:

$2^6\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:223

約数の個数: 56

約数和(自身を含む): 45354240

約数和(自身を除く): 23456704

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 71, 79, 122, 142, 158, 244, 284, 316, 488, 568, 632, 976, 1136, 1264, 1952, 2272, 2528, 3904, 4331, 4544, 4819, 5056, 5609, 8662, 9638, 11218, 17324, 19276, 22436, 34648, 38552, 44872, 69296, 77104, 89744, 138592, 154208, 179488, 277184, 308416, 342149, 358976, 684298, 1368596, 2737192, 5474384, 10948768, 21897536]

約数ペア:

[(1, 21897536), (2, 10948768), (4, 5474384), (8, 2737192), (16, 1368596), (32, 684298), (61, 358976), (64, 342149), (71, 308416), (79, 277184), (122, 179488), (142, 154208), (158, 138592), (244, 89744), (284, 77104), (316, 69296), (488, 44872), (568, 38552), (632, 34648), (976, 22436), (1136, 19276), (1264, 17324), (1952, 11218), (2272, 9638), (2528, 8662), (3904, 5609), (4331, 5056), (4544, 4819)]