21155914

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:334

約数の個数: 32

約数和(自身を含む): 35481600

約数和(自身を除く): 14325686

約数列:

[1, 2, 13, 26, 43, 86, 127, 149, 254, 298, 559, 1118, 1651, 1937, 3302, 3874, 5461, 6407, 10922, 12814, 18923, 37846, 70993, 83291, 141986, 166582, 245999, 491998, 813689, 1627378, 10577957, 21155914]

約数ペア:

[(1, 21155914), (2, 10577957), (13, 1627378), (26, 813689), (43, 491998), (86, 245999), (127, 166582), (149, 141986), (254, 83291), (298, 70993), (559, 37846), (1118, 18923), (1651, 12814), (1937, 10922), (3302, 6407), (3874, 5461)]