20951856

素因数分解:

$2^4\times 3^2\times {\mathrm{83}}^1\times {\mathrm{1753}}^1$

素因数の和:1850

約数の個数: 60

約数和(自身を含む): 59376408

約数和(自身を除く): 38424552

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 83, 144, 166, 249, 332, 498, 664, 747, 996, 1328, 1494, 1753, 1992, 2988, 3506, 3984, 5259, 5976, 7012, 10518, 11952, 14024, 15777, 21036, 28048, 31554, 42072, 63108, 84144, 126216, 145499, 252432, 290998, 436497, 581996, 872994, 1163992, 1309491, 1745988, 2327984, 2618982, 3491976, 5237964, 6983952, 10475928, 20951856]

約数ペア:

[(1, 20951856), (2, 10475928), (3, 6983952), (4, 5237964), (6, 3491976), (8, 2618982), (9, 2327984), (12, 1745988), (16, 1309491), (18, 1163992), (24, 872994), (36, 581996), (48, 436497), (72, 290998), (83, 252432), (144, 145499), (166, 126216), (249, 84144), (332, 63108), (498, 42072), (664, 31554), (747, 28048), (996, 21036), (1328, 15777), (1494, 14024), (1753, 11952), (1992, 10518), (2988, 7012), (3506, 5976), (3984, 5259)]