19981596

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2389}}^1$

素因数の和:2454

約数の個数: 48

約数和(自身を含む): 50591520

約数和(自身を除く): 30609924

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 41, 51, 68, 82, 102, 123, 164, 204, 246, 492, 697, 1394, 2091, 2389, 2788, 4182, 4778, 7167, 8364, 9556, 14334, 28668, 40613, 81226, 97949, 121839, 162452, 195898, 243678, 293847, 391796, 487356, 587694, 1175388, 1665133, 3330266, 4995399, 6660532, 9990798, 19981596]

約数ペア:

[(1, 19981596), (2, 9990798), (3, 6660532), (4, 4995399), (6, 3330266), (12, 1665133), (17, 1175388), (34, 587694), (41, 487356), (51, 391796), (68, 293847), (82, 243678), (102, 195898), (123, 162452), (164, 121839), (204, 97949), (246, 81226), (492, 40613), (697, 28668), (1394, 14334), (2091, 9556), (2389, 8364), (2788, 7167), (4182, 4778)]