21468051

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{41}}^2\times {\mathrm{43}}^1$

素因数の和:145

約数の個数: 48

約数和(自身を含む): 36389760

約数和(自身を除く): 14921709

約数列:

[1, 3, 9, 11, 27, 33, 41, 43, 99, 123, 129, 297, 369, 387, 451, 473, 1107, 1161, 1353, 1419, 1681, 1763, 4059, 4257, 5043, 5289, 12177, 12771, 15129, 15867, 18491, 19393, 45387, 47601, 55473, 58179, 72283, 166419, 174537, 216849, 499257, 523611, 650547, 795113, 1951641, 2385339, 7156017, 21468051]

約数ペア:

[(1, 21468051), (3, 7156017), (9, 2385339), (11, 1951641), (27, 795113), (33, 650547), (41, 523611), (43, 499257), (99, 216849), (123, 174537), (129, 166419), (297, 72283), (369, 58179), (387, 55473), (451, 47601), (473, 45387), (1107, 19393), (1161, 18491), (1353, 15867), (1419, 15129), (1681, 12771), (1763, 12177), (4059, 5289), (4257, 5043)]