21743540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{919}}^1$

素因数の和:961

約数の個数: 72

約数和(自身を含む): 56568960

約数和(自身を除く): 34825420

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 169, 182, 260, 338, 364, 455, 676, 845, 910, 919, 1183, 1690, 1820, 1838, 2366, 3380, 3676, 4595, 4732, 5915, 6433, 9190, 11830, 11947, 12866, 18380, 23660, 23894, 25732, 32165, 47788, 59735, 64330, 83629, 119470, 128660, 155311, 167258, 238940, 310622, 334516, 418145, 621244, 776555, 836290, 1087177, 1553110, 1672580, 2174354, 3106220, 4348708, 5435885, 10871770, 21743540]

約数ペア:

[(1, 21743540), (2, 10871770), (4, 5435885), (5, 4348708), (7, 3106220), (10, 2174354), (13, 1672580), (14, 1553110), (20, 1087177), (26, 836290), (28, 776555), (35, 621244), (52, 418145), (65, 334516), (70, 310622), (91, 238940), (130, 167258), (140, 155311), (169, 128660), (182, 119470), (260, 83629), (338, 64330), (364, 59735), (455, 47788), (676, 32165), (845, 25732), (910, 23894), (919, 23660), (1183, 18380), (1690, 12866), (1820, 11947), (1838, 11830), (2366, 9190), (3380, 6433), (3676, 5915), (4595, 4732)]