20487266

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1\times {\mathrm{643}}^1$

素因数の和:913

約数の個数: 16

約数和(自身を含む): 31298400

約数和(自身を除く): 10811134

約数列:

[1, 2, 89, 178, 179, 358, 643, 1286, 15931, 31862, 57227, 114454, 115097, 230194, 10243633, 20487266]

約数ペア:

[(1, 20487266), (2, 10243633), (89, 230194), (178, 115097), (179, 114454), (358, 57227), (643, 31862), (1286, 15931)]