20131119171

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{257}}^1\times {\mathrm{1259}}^1$

素因数の和:1776

約数の個数: 48

約数和(自身を含む): 30292254720

約数和(自身を除く): 10161135549

約数列:

[1, 3, 9, 31, 93, 223, 257, 279, 669, 771, 1259, 2007, 2313, 3777, 6913, 7967, 11331, 20739, 23901, 39029, 57311, 62217, 71703, 117087, 171933, 280757, 323563, 351261, 515799, 842271, 970689, 1776641, 2526813, 2912067, 5329923, 8703467, 10030453, 15989769, 26110401, 30091359, 72154549, 78331203, 90274077, 216463647, 649390941, 2236791019, 6710373057, 20131119171]

約数ペア:

[(1, 20131119171), (3, 6710373057), (9, 2236791019), (31, 649390941), (93, 216463647), (223, 90274077), (257, 78331203), (279, 72154549), (669, 30091359), (771, 26110401), (1259, 15989769), (2007, 10030453), (2313, 8703467), (3777, 5329923), (6913, 2912067), (7967, 2526813), (11331, 1776641), (20739, 970689), (23901, 842271), (39029, 515799), (57311, 351261), (62217, 323563), (71703, 280757), (117087, 171933)]