21445872

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{769}}^1$

素因数の和:870

約数の個数: 80

約数和(自身を含む): 64162560

約数和(自身を除く): 42716688

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 83, 84, 112, 166, 168, 249, 332, 336, 498, 581, 664, 769, 996, 1162, 1328, 1538, 1743, 1992, 2307, 2324, 3076, 3486, 3984, 4614, 4648, 5383, 6152, 6972, 9228, 9296, 10766, 12304, 13944, 16149, 18456, 21532, 27888, 32298, 36912, 43064, 63827, 64596, 86128, 127654, 129192, 191481, 255308, 258384, 382962, 446789, 510616, 765924, 893578, 1021232, 1340367, 1531848, 1787156, 2680734, 3063696, 3574312, 5361468, 7148624, 10722936, 21445872]

約数ペア:

[(1, 21445872), (2, 10722936), (3, 7148624), (4, 5361468), (6, 3574312), (7, 3063696), (8, 2680734), (12, 1787156), (14, 1531848), (16, 1340367), (21, 1021232), (24, 893578), (28, 765924), (42, 510616), (48, 446789), (56, 382962), (83, 258384), (84, 255308), (112, 191481), (166, 129192), (168, 127654), (249, 86128), (332, 64596), (336, 63827), (498, 43064), (581, 36912), (664, 32298), (769, 27888), (996, 21532), (1162, 18456), (1328, 16149), (1538, 13944), (1743, 12304), (1992, 10766), (2307, 9296), (2324, 9228), (3076, 6972), (3486, 6152), (3984, 5383), (4614, 4648)]