18888964

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:272

約数の個数: 36

約数和(自身を含む): 35503104

約数和(自身を除く): 16614140

約数列:

[1, 2, 4, 19, 38, 76, 103, 127, 206, 254, 361, 412, 508, 722, 1444, 1957, 2413, 3914, 4826, 7828, 9652, 13081, 26162, 37183, 45847, 52324, 74366, 91694, 148732, 183388, 248539, 497078, 994156, 4722241, 9444482, 18888964]

約数ペア:

[(1, 18888964), (2, 9444482), (4, 4722241), (19, 994156), (38, 497078), (76, 248539), (103, 183388), (127, 148732), (206, 91694), (254, 74366), (361, 52324), (412, 45847), (508, 37183), (722, 26162), (1444, 13081), (1957, 9652), (2413, 7828), (3914, 4826)]