21135528

素因数分解:

$2^3\times 3^2\times {\mathrm{23}}^1\times {\mathrm{12763}}^1$

素因数の和:12798

約数の個数: 48

約数和(自身を含む): 59735520

約数和(自身を除く): 38599992

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 36, 46, 69, 72, 92, 138, 184, 207, 276, 414, 552, 828, 1656, 12763, 25526, 38289, 51052, 76578, 102104, 114867, 153156, 229734, 293549, 306312, 459468, 587098, 880647, 918936, 1174196, 1761294, 2348392, 2641941, 3522588, 5283882, 7045176, 10567764, 21135528]

約数ペア:

[(1, 21135528), (2, 10567764), (3, 7045176), (4, 5283882), (6, 3522588), (8, 2641941), (9, 2348392), (12, 1761294), (18, 1174196), (23, 918936), (24, 880647), (36, 587098), (46, 459468), (69, 306312), (72, 293549), (92, 229734), (138, 153156), (184, 114867), (207, 102104), (276, 76578), (414, 51052), (552, 38289), (828, 25526), (1656, 12763)]