21951804

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{1009}}^1$

素因数の和:1067

約数の個数: 72

約数和(自身を含む): 61254480

約数和(自身を除く): 39302676

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 37, 42, 49, 74, 84, 98, 111, 147, 148, 196, 222, 259, 294, 444, 518, 588, 777, 1009, 1036, 1554, 1813, 2018, 3027, 3108, 3626, 4036, 5439, 6054, 7063, 7252, 10878, 12108, 14126, 21189, 21756, 28252, 37333, 42378, 49441, 74666, 84756, 98882, 111999, 148323, 149332, 197764, 223998, 261331, 296646, 447996, 522662, 593292, 783993, 1045324, 1567986, 1829317, 3135972, 3658634, 5487951, 7317268, 10975902, 21951804]

約数ペア:

[(1, 21951804), (2, 10975902), (3, 7317268), (4, 5487951), (6, 3658634), (7, 3135972), (12, 1829317), (14, 1567986), (21, 1045324), (28, 783993), (37, 593292), (42, 522662), (49, 447996), (74, 296646), (84, 261331), (98, 223998), (111, 197764), (147, 149332), (148, 148323), (196, 111999), (222, 98882), (259, 84756), (294, 74666), (444, 49441), (518, 42378), (588, 37333), (777, 28252), (1009, 21756), (1036, 21189), (1554, 14126), (1813, 12108), (2018, 10878), (3027, 7252), (3108, 7063), (3626, 6054), (4036, 5439)]