21139116

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{401}}^1$

素因数の和:622

約数の個数: 48

約数和(自身を含む): 51867648

約数和(自身を除く): 30728532

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 191, 276, 382, 401, 573, 764, 802, 1146, 1203, 1604, 2292, 2406, 4393, 4812, 8786, 9223, 13179, 17572, 18446, 26358, 27669, 36892, 52716, 55338, 76591, 110676, 153182, 229773, 306364, 459546, 919092, 1761593, 3523186, 5284779, 7046372, 10569558, 21139116]

約数ペア:

[(1, 21139116), (2, 10569558), (3, 7046372), (4, 5284779), (6, 3523186), (12, 1761593), (23, 919092), (46, 459546), (69, 306364), (92, 229773), (138, 153182), (191, 110676), (276, 76591), (382, 55338), (401, 52716), (573, 36892), (764, 27669), (802, 26358), (1146, 18446), (1203, 17572), (1604, 13179), (2292, 9223), (2406, 8786), (4393, 4812)]