207866997

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{257}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 336580608

約数和(自身を除く): 128713611

約数列:

[1, 3, 9, 13, 31, 39, 93, 117, 223, 257, 279, 403, 669, 771, 1209, 2007, 2313, 2899, 3341, 3627, 6913, 7967, 8697, 10023, 20739, 23901, 26091, 30069, 57311, 62217, 71703, 89869, 103571, 171933, 269607, 310713, 515799, 745043, 808821, 932139, 1776641, 2235129, 5329923, 6705387, 15989769, 23096333, 69288999, 207866997]

約数ペア:

[(1, 207866997), (3, 69288999), (9, 23096333), (13, 15989769), (31, 6705387), (39, 5329923), (93, 2235129), (117, 1776641), (223, 932139), (257, 808821), (279, 745043), (403, 515799), (669, 310713), (771, 269607), (1209, 171933), (2007, 103571), (2313, 89869), (2899, 71703), (3341, 62217), (3627, 57311), (6913, 30069), (7967, 26091), (8697, 23901), (10023, 20739)]