19905276

素因数分解:

$2^2\times 3^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{383}}^1$

素因数の和:522

約数の個数: 48

約数和(自身を含む): 47996928

約数和(自身を除く): 28091652

約数列:

[1, 2, 3, 4, 6, 12, 61, 71, 122, 142, 183, 213, 244, 284, 366, 383, 426, 732, 766, 852, 1149, 1532, 2298, 4331, 4596, 8662, 12993, 17324, 23363, 25986, 27193, 46726, 51972, 54386, 70089, 81579, 93452, 108772, 140178, 163158, 280356, 326316, 1658773, 3317546, 4976319, 6635092, 9952638, 19905276]

約数ペア:

[(1, 19905276), (2, 9952638), (3, 6635092), (4, 4976319), (6, 3317546), (12, 1658773), (61, 326316), (71, 280356), (122, 163158), (142, 140178), (183, 108772), (213, 93452), (244, 81579), (284, 70089), (366, 54386), (383, 51972), (426, 46726), (732, 27193), (766, 25986), (852, 23363), (1149, 17324), (1532, 12993), (2298, 8662), (4331, 4596)]