21047638

素因数分解:

$2^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1\times {\mathrm{1231}}^1$

素因数の和:1419

約数の個数: 16

約数和(自身を含む): 32288256

約数和(自身を除く): 11240618

約数列:

[1, 2, 83, 103, 166, 206, 1231, 2462, 8549, 17098, 102173, 126793, 204346, 253586, 10523819, 21047638]

約数ペア:

[(1, 21047638), (2, 10523819), (83, 253586), (103, 204346), (166, 126793), (206, 102173), (1231, 17098), (2462, 8549)]