21111056290

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^2\times {\mathrm{199}}^1\times {\mathrm{2851}}^1$

素因数の和:3179

約数の個数: 48

約数和(自身を含む): 38840817600

約数和(自身を除く): 17729761310

約数列:

[1, 2, 5, 10, 61, 122, 199, 305, 398, 610, 995, 1990, 2851, 3721, 5702, 7442, 12139, 14255, 18605, 24278, 28510, 37210, 60695, 121390, 173911, 347822, 567349, 740479, 869555, 1134698, 1480958, 1739110, 2836745, 3702395, 5673490, 7404790, 10608571, 21217142, 34608289, 53042855, 69216578, 106085710, 173041445, 346082890, 2111105629, 4222211258, 10555528145, 21111056290]

約数ペア:

[(1, 21111056290), (2, 10555528145), (5, 4222211258), (10, 2111105629), (61, 346082890), (122, 173041445), (199, 106085710), (305, 69216578), (398, 53042855), (610, 34608289), (995, 21217142), (1990, 10608571), (2851, 7404790), (3721, 5673490), (5702, 3702395), (7442, 2836745), (12139, 1739110), (14255, 1480958), (18605, 1134698), (24278, 869555), (28510, 740479), (37210, 567349), (60695, 347822), (121390, 173911)]