20546484

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{421}}^1$

素因数の和:525

約数の個数: 72

約数和(自身を含む): 56575008

約数和(自身を除く): 36028524

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 83, 84, 98, 147, 166, 196, 249, 294, 332, 421, 498, 581, 588, 842, 996, 1162, 1263, 1684, 1743, 2324, 2526, 2947, 3486, 4067, 5052, 5894, 6972, 8134, 8841, 11788, 12201, 16268, 17682, 20629, 24402, 34943, 35364, 41258, 48804, 61887, 69886, 82516, 104829, 123774, 139772, 209658, 244601, 247548, 419316, 489202, 733803, 978404, 1467606, 1712207, 2935212, 3424414, 5136621, 6848828, 10273242, 20546484]

約数ペア:

[(1, 20546484), (2, 10273242), (3, 6848828), (4, 5136621), (6, 3424414), (7, 2935212), (12, 1712207), (14, 1467606), (21, 978404), (28, 733803), (42, 489202), (49, 419316), (83, 247548), (84, 244601), (98, 209658), (147, 139772), (166, 123774), (196, 104829), (249, 82516), (294, 69886), (332, 61887), (421, 48804), (498, 41258), (581, 35364), (588, 34943), (842, 24402), (996, 20629), (1162, 17682), (1263, 16268), (1684, 12201), (1743, 11788), (2324, 8841), (2526, 8134), (2947, 6972), (3486, 5894), (4067, 5052)]