21048612

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:237

約数の個数: 72

約数和(自身を含む): 54232416

約数和(自身を除く): 33183804

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 97, 107, 156, 169, 194, 214, 291, 321, 338, 388, 428, 507, 582, 642, 676, 1014, 1164, 1261, 1284, 1391, 2028, 2522, 2782, 3783, 4173, 5044, 5564, 7566, 8346, 10379, 15132, 16393, 16692, 18083, 20758, 31137, 32786, 36166, 41516, 49179, 54249, 62274, 65572, 72332, 98358, 108498, 124548, 134927, 196716, 216996, 269854, 404781, 539708, 809562, 1619124, 1754051, 3508102, 5262153, 7016204, 10524306, 21048612]

約数ペア:

[(1, 21048612), (2, 10524306), (3, 7016204), (4, 5262153), (6, 3508102), (12, 1754051), (13, 1619124), (26, 809562), (39, 539708), (52, 404781), (78, 269854), (97, 216996), (107, 196716), (156, 134927), (169, 124548), (194, 108498), (214, 98358), (291, 72332), (321, 65572), (338, 62274), (388, 54249), (428, 49179), (507, 41516), (582, 36166), (642, 32786), (676, 31137), (1014, 20758), (1164, 18083), (1261, 16692), (1284, 16393), (1391, 15132), (2028, 10379), (2522, 8346), (2782, 7566), (3783, 5564), (4173, 5044)]