19425718655

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{73}}^1\times {\mathrm{21061}}^1$

素因数の和:21184

約数の個数: 48

約数和(自身を含む): 28503457344

約数和(自身を除く): 9077738689

約数列:

[1, 5, 7, 19, 35, 73, 95, 133, 361, 365, 511, 665, 1387, 1805, 2527, 2555, 6935, 9709, 12635, 21061, 26353, 48545, 105305, 131765, 147427, 184471, 400159, 737135, 922355, 1537453, 2000795, 2801113, 7603021, 7687265, 10762171, 14005565, 29211607, 38015105, 53221147, 53810855, 146058035, 204481249, 266105735, 555020533, 1022406245, 2775102665, 3885143731, 19425718655]

約数ペア:

[(1, 19425718655), (5, 3885143731), (7, 2775102665), (19, 1022406245), (35, 555020533), (73, 266105735), (95, 204481249), (133, 146058035), (361, 53810855), (365, 53221147), (511, 38015105), (665, 29211607), (1387, 14005565), (1805, 10762171), (2527, 7687265), (2555, 7603021), (6935, 2801113), (9709, 2000795), (12635, 1537453), (21061, 922355), (26353, 737135), (48545, 400159), (105305, 184471), (131765, 147427)]