21873484

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{449}}^1\times {\mathrm{641}}^1$

素因数の和:1113

約数の個数: 24

約数和(自身を含む): 40446000

約数和(自身を除く): 18572516

約数列:

[1, 2, 4, 19, 38, 76, 449, 641, 898, 1282, 1796, 2564, 8531, 12179, 17062, 24358, 34124, 48716, 287809, 575618, 1151236, 5468371, 10936742, 21873484]

約数ペア:

[(1, 21873484), (2, 10936742), (4, 5468371), (19, 1151236), (38, 575618), (76, 287809), (449, 48716), (641, 34124), (898, 24358), (1282, 17062), (1796, 12179), (2564, 8531)]