19704204

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{593}}^1$

素因数の和:687

約数の個数: 72

約数和(自身を含む): 54486432

約数和(自身を除く): 34782228

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 71, 78, 117, 142, 156, 213, 234, 284, 426, 468, 593, 639, 852, 923, 1186, 1278, 1779, 1846, 2372, 2556, 2769, 3558, 3692, 5337, 5538, 7116, 7709, 8307, 10674, 11076, 15418, 16614, 21348, 23127, 30836, 33228, 42103, 46254, 69381, 84206, 92508, 126309, 138762, 168412, 252618, 277524, 378927, 505236, 547339, 757854, 1094678, 1515708, 1642017, 2189356, 3284034, 4926051, 6568068, 9852102, 19704204]

約数ペア:

[(1, 19704204), (2, 9852102), (3, 6568068), (4, 4926051), (6, 3284034), (9, 2189356), (12, 1642017), (13, 1515708), (18, 1094678), (26, 757854), (36, 547339), (39, 505236), (52, 378927), (71, 277524), (78, 252618), (117, 168412), (142, 138762), (156, 126309), (213, 92508), (234, 84206), (284, 69381), (426, 46254), (468, 42103), (593, 33228), (639, 30836), (852, 23127), (923, 21348), (1186, 16614), (1278, 15418), (1779, 11076), (1846, 10674), (2372, 8307), (2556, 7709), (2769, 7116), (3558, 5538), (3692, 5337)]