21714231

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:172

約数の個数: 64

約数和(自身を含む): 38854656

約数和(自身を除く): 17140425

約数列:

[1, 3, 7, 11, 21, 23, 33, 61, 67, 69, 77, 161, 183, 201, 231, 253, 427, 469, 483, 671, 737, 759, 1281, 1403, 1407, 1541, 1771, 2013, 2211, 4087, 4209, 4623, 4697, 5159, 5313, 9821, 10787, 12261, 14091, 15433, 15477, 16951, 28609, 29463, 32361, 44957, 46299, 50853, 85827, 94001, 108031, 118657, 134871, 282003, 314699, 324093, 355971, 658007, 944097, 1034011, 1974021, 3102033, 7238077, 21714231]

約数ペア:

[(1, 21714231), (3, 7238077), (7, 3102033), (11, 1974021), (21, 1034011), (23, 944097), (33, 658007), (61, 355971), (67, 324093), (69, 314699), (77, 282003), (161, 134871), (183, 118657), (201, 108031), (231, 94001), (253, 85827), (427, 50853), (469, 46299), (483, 44957), (671, 32361), (737, 29463), (759, 28609), (1281, 16951), (1403, 15477), (1407, 15433), (1541, 14091), (1771, 12261), (2013, 10787), (2211, 9821), (4087, 5313), (4209, 5159), (4623, 4697)]