28431884

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{137}}^1\times {\mathrm{307}}^1$

素因数の和:474

約数の個数: 36

約数和(自身を含む): 54447624

約数和(自身を除く): 26015740

約数列:

[1, 2, 4, 13, 26, 52, 137, 169, 274, 307, 338, 548, 614, 676, 1228, 1781, 3562, 3991, 7124, 7982, 15964, 23153, 42059, 46306, 51883, 84118, 92612, 103766, 168236, 207532, 546767, 1093534, 2187068, 7107971, 14215942, 28431884]

約数ペア:

[(1, 28431884), (2, 14215942), (4, 7107971), (13, 2187068), (26, 1093534), (52, 546767), (137, 207532), (169, 168236), (274, 103766), (307, 92612), (338, 84118), (548, 51883), (614, 46306), (676, 42059), (1228, 23153), (1781, 15964), (3562, 7982), (3991, 7124)]