21790132273

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{7727}}^1$

素因数の和:8006

約数の個数: 48

約数和(自身を含む): 28861297920

約数和(自身を除く): 7071165647

約数列:

[1, 7, 13, 19, 49, 91, 133, 233, 247, 637, 931, 1631, 1729, 3029, 4427, 7727, 11417, 12103, 21203, 30989, 54089, 57551, 100451, 146813, 148421, 216923, 378623, 402857, 703157, 1027691, 1800391, 1908569, 2819999, 4922099, 7193837, 12602737, 13359983, 23405083, 34207429, 88219159, 93519881, 163835581, 239452003, 444696577, 1146849067, 1676164021, 3112876039, 21790132273]

約数ペア:

[(1, 21790132273), (7, 3112876039), (13, 1676164021), (19, 1146849067), (49, 444696577), (91, 239452003), (133, 163835581), (233, 93519881), (247, 88219159), (637, 34207429), (931, 23405083), (1631, 13359983), (1729, 12602737), (3029, 7193837), (4427, 4922099), (7727, 2819999), (11417, 1908569), (12103, 1800391), (21203, 1027691), (30989, 703157), (54089, 402857), (57551, 378623), (100451, 216923), (146813, 148421)]