20888927969

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{719}}^1$

素因数の和:978

約数の個数: 64

約数和(自身を含む): 27143424000

約数和(自身を除く): 6254496031

約数列:

[1, 7, 13, 29, 91, 101, 109, 203, 377, 707, 719, 763, 1313, 1417, 2639, 2929, 3161, 5033, 9191, 9347, 9919, 11009, 20503, 20851, 22127, 38077, 41093, 65429, 72619, 77063, 78371, 143117, 145957, 266539, 271063, 287651, 319261, 508333, 548597, 944047, 1001819, 1018823, 1897441, 2105951, 2234827, 2272759, 4150393, 6608329, 7131761, 7915471, 14741657, 15909313, 27377363, 29052751, 29545867, 55408297, 102901123, 191641541, 206821069, 229548659, 720307861, 1606840613, 2984132567, 20888927969]

約数ペア:

[(1, 20888927969), (7, 2984132567), (13, 1606840613), (29, 720307861), (91, 229548659), (101, 206821069), (109, 191641541), (203, 102901123), (377, 55408297), (707, 29545867), (719, 29052751), (763, 27377363), (1313, 15909313), (1417, 14741657), (2639, 7915471), (2929, 7131761), (3161, 6608329), (5033, 4150393), (9191, 2272759), (9347, 2234827), (9919, 2105951), (11009, 1897441), (20503, 1018823), (20851, 1001819), (22127, 944047), (38077, 548597), (41093, 508333), (65429, 319261), (72619, 287651), (77063, 271063), (78371, 266539), (143117, 145957)]