21449880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19861}}^1$

素因数の和:19881

約数の個数: 64

約数和(自身を含む): 71503200

約数和(自身を除く): 50053320

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, 19861, 39722, 59583, 79444, 99305, 119166, 158888, 178749, 198610, 238332, 297915, 357498, 397220, 476664, 536247, 595830, 714996, 794440, 893745, 1072494, 1191660, 1429992, 1787490, 2144988, 2383320, 2681235, 3574980, 4289976, 5362470, 7149960, 10724940, 21449880]

約数ペア:

[(1, 21449880), (2, 10724940), (3, 7149960), (4, 5362470), (5, 4289976), (6, 3574980), (8, 2681235), (9, 2383320), (10, 2144988), (12, 1787490), (15, 1429992), (18, 1191660), (20, 1072494), (24, 893745), (27, 794440), (30, 714996), (36, 595830), (40, 536247), (45, 476664), (54, 397220), (60, 357498), (72, 297915), (90, 238332), (108, 198610), (120, 178749), (135, 158888), (180, 119166), (216, 99305), (270, 79444), (360, 59583), (540, 39722), (1080, 19861)]