19724607

素因数分解:

$3^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{877}}^1$

素因数の和:917

約数の個数: 48

約数和(自身を含む): 36033120

約数和(自身を除く): 16308513

約数列:

[1, 3, 7, 9, 17, 21, 27, 49, 51, 63, 119, 147, 153, 189, 357, 441, 459, 833, 877, 1071, 1323, 2499, 2631, 3213, 6139, 7497, 7893, 14909, 18417, 22491, 23679, 42973, 44727, 55251, 104363, 128919, 134181, 165753, 313089, 386757, 402543, 730541, 939267, 1160271, 2191623, 2817801, 6574869, 19724607]

約数ペア:

[(1, 19724607), (3, 6574869), (7, 2817801), (9, 2191623), (17, 1160271), (21, 939267), (27, 730541), (49, 402543), (51, 386757), (63, 313089), (119, 165753), (147, 134181), (153, 128919), (189, 104363), (357, 55251), (441, 44727), (459, 42973), (833, 23679), (877, 22491), (1071, 18417), (1323, 14909), (2499, 7893), (2631, 7497), (3213, 6139)]