19640990908

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{381853}}^1$

素因数の和:382042

約数の個数: 48

約数和(自身を含む): 43109789184

約数和(自身を除く): 23468798276

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 167, 308, 334, 668, 1169, 1837, 2338, 3674, 4676, 7348, 12859, 25718, 51436, 381853, 763706, 1527412, 2672971, 4200383, 5345942, 8400766, 10691884, 16801532, 29402681, 58805362, 63769451, 117610724, 127538902, 255077804, 446386157, 701463961, 892772314, 1402927922, 1785544628, 2805855844, 4910247727, 9820495454, 19640990908]

約数ペア:

[(1, 19640990908), (2, 9820495454), (4, 4910247727), (7, 2805855844), (11, 1785544628), (14, 1402927922), (22, 892772314), (28, 701463961), (44, 446386157), (77, 255077804), (154, 127538902), (167, 117610724), (308, 63769451), (334, 58805362), (668, 29402681), (1169, 16801532), (1837, 10691884), (2338, 8400766), (3674, 5345942), (4676, 4200383), (7348, 2672971), (12859, 1527412), (25718, 763706), (51436, 381853)]