19173128

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1$

素因数の和:382

約数の個数: 64

約数和(自身を含む): 42201600

約数和(自身を除く): 23028472

約数列:

[1, 2, 4, 8, 13, 19, 26, 31, 38, 52, 62, 76, 104, 124, 152, 247, 248, 313, 403, 494, 589, 626, 806, 988, 1178, 1252, 1612, 1976, 2356, 2504, 3224, 4069, 4712, 5947, 7657, 8138, 9703, 11894, 15314, 16276, 19406, 23788, 30628, 32552, 38812, 47576, 61256, 77311, 77624, 126139, 154622, 184357, 252278, 309244, 368714, 504556, 618488, 737428, 1009112, 1474856, 2396641, 4793282, 9586564, 19173128]

約数ペア:

[(1, 19173128), (2, 9586564), (4, 4793282), (8, 2396641), (13, 1474856), (19, 1009112), (26, 737428), (31, 618488), (38, 504556), (52, 368714), (62, 309244), (76, 252278), (104, 184357), (124, 154622), (152, 126139), (247, 77624), (248, 77311), (313, 61256), (403, 47576), (494, 38812), (589, 32552), (626, 30628), (806, 23788), (988, 19406), (1178, 16276), (1252, 15314), (1612, 11894), (1976, 9703), (2356, 8138), (2504, 7657), (3224, 5947), (4069, 4712)]