20898976

素因数分解:

$2^5\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1181}}^1$

素因数の和:1277

約数の個数: 48

約数和(自身を含む): 47658240

約数和(自身を除く): 26759264

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 79, 112, 158, 224, 316, 553, 632, 1106, 1181, 1264, 2212, 2362, 2528, 4424, 4724, 8267, 8848, 9448, 16534, 17696, 18896, 33068, 37792, 66136, 93299, 132272, 186598, 264544, 373196, 653093, 746392, 1306186, 1492784, 2612372, 2985568, 5224744, 10449488, 20898976]

約数ペア:

[(1, 20898976), (2, 10449488), (4, 5224744), (7, 2985568), (8, 2612372), (14, 1492784), (16, 1306186), (28, 746392), (32, 653093), (56, 373196), (79, 264544), (112, 186598), (158, 132272), (224, 93299), (316, 66136), (553, 37792), (632, 33068), (1106, 18896), (1181, 17696), (1264, 16534), (2212, 9448), (2362, 8848), (2528, 8267), (4424, 4724)]