20688696

素因数分解:

$2^3\times 3^4\times 7^1\times {\mathrm{4561}}^1$

素因数の和:4586

約数の個数: 80

約数和(自身を含む): 66240240

約数和(自身を除く): 45551544

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 81, 84, 108, 126, 162, 168, 189, 216, 252, 324, 378, 504, 567, 648, 756, 1134, 1512, 2268, 4536, 4561, 9122, 13683, 18244, 27366, 31927, 36488, 41049, 54732, 63854, 82098, 95781, 109464, 123147, 127708, 164196, 191562, 246294, 255416, 287343, 328392, 369441, 383124, 492588, 574686, 738882, 766248, 862029, 985176, 1149372, 1477764, 1724058, 2298744, 2586087, 2955528, 3448116, 5172174, 6896232, 10344348, 20688696]

約数ペア:

[(1, 20688696), (2, 10344348), (3, 6896232), (4, 5172174), (6, 3448116), (7, 2955528), (8, 2586087), (9, 2298744), (12, 1724058), (14, 1477764), (18, 1149372), (21, 985176), (24, 862029), (27, 766248), (28, 738882), (36, 574686), (42, 492588), (54, 383124), (56, 369441), (63, 328392), (72, 287343), (81, 255416), (84, 246294), (108, 191562), (126, 164196), (162, 127708), (168, 123147), (189, 109464), (216, 95781), (252, 82098), (324, 63854), (378, 54732), (504, 41049), (567, 36488), (648, 31927), (756, 27366), (1134, 18244), (1512, 13683), (2268, 9122), (4536, 4561)]