19903086

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1153}}^1$

素因数の和:1305

約数の個数: 48

約数和(自身を含む): 49686624

約数和(自身を除く): 29783538

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 137, 274, 411, 822, 959, 1153, 1233, 1918, 2306, 2466, 2877, 3459, 5754, 6918, 8071, 8631, 10377, 16142, 17262, 20754, 24213, 48426, 72639, 145278, 157961, 315922, 473883, 947766, 1105727, 1421649, 2211454, 2843298, 3317181, 6634362, 9951543, 19903086]

約数ペア:

[(1, 19903086), (2, 9951543), (3, 6634362), (6, 3317181), (7, 2843298), (9, 2211454), (14, 1421649), (18, 1105727), (21, 947766), (42, 473883), (63, 315922), (126, 157961), (137, 145278), (274, 72639), (411, 48426), (822, 24213), (959, 20754), (1153, 17262), (1233, 16142), (1918, 10377), (2306, 8631), (2466, 8071), (2877, 6918), (3459, 5754)]