21081449880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19519861}}^1$

素因数の和:19519881

約数の個数: 64

約数和(自身を含む): 70271503200

約数和(自身を除く): 49190053320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 19519861, 39039722, 58559583, 78079444, 97599305, 117119166, 156158888, 175678749, 195198610, 234238332, 292797915, 351357498, 390397220, 468476664, 527036247, 585595830, 702714996, 780794440, 878393745, 1054072494, 1171191660, 1405429992, 1756787490, 2108144988, 2342383320, 2635181235, 3513574980, 4216289976, 5270362470, 7027149960, 10540724940, 21081449880]

約数ペア:

[(1, 21081449880), (2, 10540724940), (3, 7027149960), (4, 5270362470), (5, 4216289976), (6, 3513574980), (8, 2635181235), (9, 2342383320), (10, 2108144988), (12, 1756787490), (15, 1405429992), (18, 1171191660), (20, 1054072494), (24, 878393745), (27, 780794440), (30, 702714996), (36, 585595830), (40, 527036247), (45, 468476664), (54, 390397220), (60, 351357498), (72, 292797915), (90, 234238332), (108, 195198610), (120, 175678749), (135, 156158888), (180, 117119166), (216, 97599305), (270, 78079444), (360, 58559583), (540, 39039722), (1080, 19519861)]