20078478

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8387}}^1$

素因数の和:8421

約数の個数: 48

約数和(自身を含む): 52341120

約数和(自身を除く): 32262642

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 57, 63, 114, 126, 133, 171, 266, 342, 399, 798, 1197, 2394, 8387, 16774, 25161, 50322, 58709, 75483, 117418, 150966, 159353, 176127, 318706, 352254, 478059, 528381, 956118, 1056762, 1115471, 1434177, 2230942, 2868354, 3346413, 6692826, 10039239, 20078478]

約数ペア:

[(1, 20078478), (2, 10039239), (3, 6692826), (6, 3346413), (7, 2868354), (9, 2230942), (14, 1434177), (18, 1115471), (19, 1056762), (21, 956118), (38, 528381), (42, 478059), (57, 352254), (63, 318706), (114, 176127), (126, 159353), (133, 150966), (171, 117418), (266, 75483), (342, 58709), (399, 50322), (798, 25161), (1197, 16774), (2394, 8387)]