21642208

素因数分解:

$2^5\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1223}}^1$

素因数の和:1319

約数の個数: 48

約数和(自身を含む): 49351680

約数和(自身を除く): 27709472

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 79, 112, 158, 224, 316, 553, 632, 1106, 1223, 1264, 2212, 2446, 2528, 4424, 4892, 8561, 8848, 9784, 17122, 17696, 19568, 34244, 39136, 68488, 96617, 136976, 193234, 273952, 386468, 676319, 772936, 1352638, 1545872, 2705276, 3091744, 5410552, 10821104, 21642208]

約数ペア:

[(1, 21642208), (2, 10821104), (4, 5410552), (7, 3091744), (8, 2705276), (14, 1545872), (16, 1352638), (28, 772936), (32, 676319), (56, 386468), (79, 273952), (112, 193234), (158, 136976), (224, 96617), (316, 68488), (553, 39136), (632, 34244), (1106, 19568), (1223, 17696), (1264, 17122), (2212, 9784), (2446, 8848), (2528, 8561), (4424, 4892)]