216840559

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{457}}^1$

素因数の和:619

約数の個数: 32

約数和(自身を含む): 263148480

約数和(自身を除く): 46307921

約数列:

[1, 13, 17, 19, 113, 221, 247, 323, 457, 1469, 1921, 2147, 4199, 5941, 7769, 8683, 24973, 27911, 36499, 51641, 100997, 112879, 147611, 474487, 671333, 877897, 981179, 1918943, 11412661, 12755327, 16680043, 216840559]

約数ペア:

[(1, 216840559), (13, 16680043), (17, 12755327), (19, 11412661), (113, 1918943), (221, 981179), (247, 877897), (323, 671333), (457, 474487), (1469, 147611), (1921, 112879), (2147, 100997), (4199, 51641), (5941, 36499), (7769, 27911), (8683, 24973)]