21010980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20599}}^1$

素因数の和:20628

約数の個数: 48

約数和(自身を含む): 62294400

約数和(自身を除く): 41283420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 20599, 41198, 61797, 82396, 102995, 123594, 205990, 247188, 308985, 350183, 411980, 617970, 700366, 1050549, 1235940, 1400732, 1750915, 2101098, 3501830, 4202196, 5252745, 7003660, 10505490, 21010980]

約数ペア:

[(1, 21010980), (2, 10505490), (3, 7003660), (4, 5252745), (5, 4202196), (6, 3501830), (10, 2101098), (12, 1750915), (15, 1400732), (17, 1235940), (20, 1050549), (30, 700366), (34, 617970), (51, 411980), (60, 350183), (68, 308985), (85, 247188), (102, 205990), (170, 123594), (204, 102995), (255, 82396), (340, 61797), (510, 41198), (1020, 20599)]