21375984

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{563}}^1$

素因数の和:694

約数の個数: 80

約数和(自身を含む): 63781632

約数和(自身を除く): 42405648

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 113, 168, 226, 336, 339, 452, 563, 678, 791, 904, 1126, 1356, 1582, 1689, 1808, 2252, 2373, 2712, 3164, 3378, 3941, 4504, 4746, 5424, 6328, 6756, 7882, 9008, 9492, 11823, 12656, 13512, 15764, 18984, 23646, 27024, 31528, 37968, 47292, 63056, 63619, 94584, 127238, 189168, 190857, 254476, 381714, 445333, 508952, 763428, 890666, 1017904, 1335999, 1526856, 1781332, 2671998, 3053712, 3562664, 5343996, 7125328, 10687992, 21375984]

約数ペア:

[(1, 21375984), (2, 10687992), (3, 7125328), (4, 5343996), (6, 3562664), (7, 3053712), (8, 2671998), (12, 1781332), (14, 1526856), (16, 1335999), (21, 1017904), (24, 890666), (28, 763428), (42, 508952), (48, 445333), (56, 381714), (84, 254476), (112, 190857), (113, 189168), (168, 127238), (226, 94584), (336, 63619), (339, 63056), (452, 47292), (563, 37968), (678, 31528), (791, 27024), (904, 23646), (1126, 18984), (1356, 15764), (1582, 13512), (1689, 12656), (1808, 11823), (2252, 9492), (2373, 9008), (2712, 7882), (3164, 6756), (3378, 6328), (3941, 5424), (4504, 4746)]