21767798

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{409}}^1$

素因数の和:536

約数の個数: 32

約数和(自身を含む): 37195200

約数和(自身を除く): 15427402

約数列:

[1, 2, 13, 23, 26, 46, 89, 178, 299, 409, 598, 818, 1157, 2047, 2314, 4094, 5317, 9407, 10634, 18814, 26611, 36401, 53222, 72802, 122291, 244582, 473213, 837223, 946426, 1674446, 10883899, 21767798]

約数ペア:

[(1, 21767798), (2, 10883899), (13, 1674446), (23, 946426), (26, 837223), (46, 473213), (89, 244582), (178, 122291), (299, 72802), (409, 53222), (598, 36401), (818, 26611), (1157, 18814), (2047, 10634), (2314, 9407), (4094, 5317)]