21822605

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20113}}^1$

素因数の和:20156

約数の個数: 16

約数和(自身を含む): 30895104

約数和(自身を除く): 9072499

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 20113, 100565, 140791, 623503, 703955, 3117515, 4364521, 21822605]

約数ペア:

[(1, 21822605), (5, 4364521), (7, 3117515), (31, 703955), (35, 623503), (155, 140791), (217, 100565), (1085, 20113)]