21001023916

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{17491}}^1\times {\mathrm{17657}}^1$

素因数の和:35169

約数の個数: 24

約数和(自身を含む): 38918090736

約数和(自身を除く): 17917066820

約数列:

[1, 2, 4, 17, 34, 68, 17491, 17657, 34982, 35314, 69964, 70628, 297347, 300169, 594694, 600338, 1189388, 1200676, 308838587, 617677174, 1235354348, 5250255979, 10500511958, 21001023916]

約数ペア:

[(1, 21001023916), (2, 10500511958), (4, 5250255979), (17, 1235354348), (34, 617677174), (68, 308838587), (17491, 1200676), (17657, 1189388), (34982, 600338), (35314, 594694), (69964, 300169), (70628, 297347)]