21669821225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{443}}^1\times {\mathrm{3671}}^1$

素因数の和:4178

約数の個数: 48

約数和(自身を含む): 29718347904

約数和(自身を除く): 8048526679

約数列:

[1, 5, 13, 25, 41, 65, 205, 325, 443, 533, 1025, 2215, 2665, 3671, 5759, 11075, 13325, 18163, 18355, 28795, 47723, 90815, 91775, 143975, 150511, 236119, 238615, 454075, 752555, 1180595, 1193075, 1626253, 1956643, 3762775, 5902975, 8131265, 9783215, 21141289, 40656325, 48916075, 66676373, 105706445, 333381865, 528532225, 866792849, 1666909325, 4333964245, 21669821225]

約数ペア:

[(1, 21669821225), (5, 4333964245), (13, 1666909325), (25, 866792849), (41, 528532225), (65, 333381865), (205, 105706445), (325, 66676373), (443, 48916075), (533, 40656325), (1025, 21141289), (2215, 9783215), (2665, 8131265), (3671, 5902975), (5759, 3762775), (11075, 1956643), (13325, 1626253), (18163, 1193075), (18355, 1180595), (28795, 752555), (47723, 454075), (90815, 238615), (91775, 236119), (143975, 150511)]