268821

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1$

素因数の和:281

約数の個数: 24

約数和(自身を含む): 471744

約数和(自身を除く): 202923

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 251, 357, 753, 1071, 1757, 2259, 4267, 5271, 12801, 15813, 29869, 38403, 89607, 268821]

約数ペア:

[(1, 268821), (3, 89607), (7, 38403), (9, 29869), (17, 15813), (21, 12801), (51, 5271), (63, 4267), (119, 2259), (153, 1757), (251, 1071), (357, 753)]