64372721

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{509}}^1$

素因数の和:641

約数の個数: 24

約数和(自身を含む): 78489000

約数和(自身を除く): 14116279

約数列:

[1, 7, 29, 49, 89, 203, 509, 623, 1421, 2581, 3563, 4361, 14761, 18067, 24941, 45301, 103327, 126469, 317107, 723289, 1313729, 2219749, 9196103, 64372721]

約数ペア:

[(1, 64372721), (7, 9196103), (29, 2219749), (49, 1313729), (89, 723289), (203, 317107), (509, 126469), (623, 103327), (1421, 45301), (2581, 24941), (3563, 18067), (4361, 14761)]