21731738

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{25447}}^1$

素因数の和:25517

約数の個数: 16

約数和(自身を含む): 37866624

約数和(自身を除く): 16134886

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 25447, 50894, 178129, 356258, 1552267, 3104534, 10865869, 21731738]

約数ペア:

[(1, 21731738), (2, 10865869), (7, 3104534), (14, 1552267), (61, 356258), (122, 178129), (427, 50894), (854, 25447)]