19864797693

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{487}}^1\times {\mathrm{14731}}^1$

素因数の和:15305

約数の個数: 32

約数和(自身を含む): 28986918912

約数和(自身を除く): 9122121219

約数列:

[1, 3, 13, 39, 71, 213, 487, 923, 1461, 2769, 6331, 14731, 18993, 34577, 44193, 103731, 191503, 449501, 574509, 1045901, 1348503, 3137703, 7173997, 13596713, 21521991, 40790139, 93261961, 279785883, 509353787, 1528061361, 6621599231, 19864797693]

約数ペア:

[(1, 19864797693), (3, 6621599231), (13, 1528061361), (39, 509353787), (71, 279785883), (213, 93261961), (487, 40790139), (923, 21521991), (1461, 13596713), (2769, 7173997), (6331, 3137703), (14731, 1348503), (18993, 1045901), (34577, 574509), (44193, 449501), (103731, 191503)]