20663538

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{13297}}^1$

素因数の和:13346

約数の個数: 32

約数和(自身を含む): 48511104

約数和(自身を除く): 27847566

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 74, 111, 222, 259, 518, 777, 1554, 13297, 26594, 39891, 79782, 93079, 186158, 279237, 491989, 558474, 983978, 1475967, 2951934, 3443923, 6887846, 10331769, 20663538]

約数ペア:

[(1, 20663538), (2, 10331769), (3, 6887846), (6, 3443923), (7, 2951934), (14, 1475967), (21, 983978), (37, 558474), (42, 491989), (74, 279237), (111, 186158), (222, 93079), (259, 79782), (518, 39891), (777, 26594), (1554, 13297)]