21288444

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{643}}^1$

素因数の和:770

約数の個数: 48

約数和(自身を含む): 51932160

約数和(自身を除く): 30643716

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 89, 93, 124, 178, 186, 267, 356, 372, 534, 643, 1068, 1286, 1929, 2572, 2759, 3858, 5518, 7716, 8277, 11036, 16554, 19933, 33108, 39866, 57227, 59799, 79732, 114454, 119598, 171681, 228908, 239196, 343362, 686724, 1774037, 3548074, 5322111, 7096148, 10644222, 21288444]

約数ペア:

[(1, 21288444), (2, 10644222), (3, 7096148), (4, 5322111), (6, 3548074), (12, 1774037), (31, 686724), (62, 343362), (89, 239196), (93, 228908), (124, 171681), (178, 119598), (186, 114454), (267, 79732), (356, 59799), (372, 57227), (534, 39866), (643, 33108), (1068, 19933), (1286, 16554), (1929, 11036), (2572, 8277), (2759, 7716), (3858, 5518)]