21990714

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{8387}}^1$

素因数の和:8434

約数の個数: 32

約数和(自身を含む): 48314880

約数和(自身を除く): 26324166

約数列:

[1, 2, 3, 6, 19, 23, 38, 46, 57, 69, 114, 138, 437, 874, 1311, 2622, 8387, 16774, 25161, 50322, 159353, 192901, 318706, 385802, 478059, 578703, 956118, 1157406, 3665119, 7330238, 10995357, 21990714]

約数ペア:

[(1, 21990714), (2, 10995357), (3, 7330238), (6, 3665119), (19, 1157406), (23, 956118), (38, 578703), (46, 478059), (57, 385802), (69, 318706), (114, 192901), (138, 159353), (437, 50322), (874, 25161), (1311, 16774), (2622, 8387)]