21093240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{25111}}^1$

素因数の和:25132

約数の個数: 64

約数和(自身を含む): 72322560

約数和(自身を除く): 51229320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 25111, 50222, 75333, 100444, 125555, 150666, 175777, 200888, 251110, 301332, 351554, 376665, 502220, 527331, 602664, 703108, 753330, 878885, 1004440, 1054662, 1406216, 1506660, 1757770, 2109324, 2636655, 3013320, 3515540, 4218648, 5273310, 7031080, 10546620, 21093240]

約数ペア:

[(1, 21093240), (2, 10546620), (3, 7031080), (4, 5273310), (5, 4218648), (6, 3515540), (7, 3013320), (8, 2636655), (10, 2109324), (12, 1757770), (14, 1506660), (15, 1406216), (20, 1054662), (21, 1004440), (24, 878885), (28, 753330), (30, 703108), (35, 602664), (40, 527331), (42, 502220), (56, 376665), (60, 351554), (70, 301332), (84, 251110), (105, 200888), (120, 175777), (140, 150666), (168, 125555), (210, 100444), (280, 75333), (420, 50222), (840, 25111)]