19729342

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{271}}^1\times {\mathrm{409}}^1$

素因数の和:771

約数の個数: 16

約数和(自身を含む): 30110400

約数和(自身を除く): 10381058

約数列:

[1, 2, 89, 178, 271, 409, 542, 818, 24119, 36401, 48238, 72802, 110839, 221678, 9864671, 19729342]

約数ペア:

[(1, 19729342), (2, 9864671), (89, 221678), (178, 110839), (271, 72802), (409, 48238), (542, 36401), (818, 24119)]