18964071

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5281}}^1$

素因数の和:5316

約数の個数: 32

約数和(自身を含む): 33804800

約数和(自身を除く): 14840729

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 171, 189, 399, 513, 1197, 3591, 5281, 15843, 36967, 47529, 100339, 110901, 142587, 301017, 332703, 702373, 903051, 998109, 2107119, 2709153, 6321357, 18964071]

約数ペア:

[(1, 18964071), (3, 6321357), (7, 2709153), (9, 2107119), (19, 998109), (21, 903051), (27, 702373), (57, 332703), (63, 301017), (133, 142587), (171, 110901), (189, 100339), (399, 47529), (513, 36967), (1197, 15843), (3591, 5281)]