19784076

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4091}}^1$

素因数の和:4142

約数の個数: 48

約数和(自身を含む): 51330048

約数和(自身を除く): 31545972

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 62, 78, 93, 124, 156, 186, 372, 403, 806, 1209, 1612, 2418, 4091, 4836, 8182, 12273, 16364, 24546, 49092, 53183, 106366, 126821, 159549, 212732, 253642, 319098, 380463, 507284, 638196, 760926, 1521852, 1648673, 3297346, 4946019, 6594692, 9892038, 19784076]

約数ペア:

[(1, 19784076), (2, 9892038), (3, 6594692), (4, 4946019), (6, 3297346), (12, 1648673), (13, 1521852), (26, 760926), (31, 638196), (39, 507284), (52, 380463), (62, 319098), (78, 253642), (93, 212732), (124, 159549), (156, 126821), (186, 106366), (372, 53183), (403, 49092), (806, 24546), (1209, 16364), (1612, 12273), (2418, 8182), (4091, 4836)]