21481560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{59671}}^1$

素因数の和:59688

約数の個数: 48

約数和(自身を含む): 69816240

約数和(自身を除く): 48334680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 59671, 119342, 179013, 238684, 298355, 358026, 477368, 537039, 596710, 716052, 895065, 1074078, 1193420, 1432104, 1790130, 2148156, 2386840, 2685195, 3580260, 4296312, 5370390, 7160520, 10740780, 21481560]

約数ペア:

[(1, 21481560), (2, 10740780), (3, 7160520), (4, 5370390), (5, 4296312), (6, 3580260), (8, 2685195), (9, 2386840), (10, 2148156), (12, 1790130), (15, 1432104), (18, 1193420), (20, 1074078), (24, 895065), (30, 716052), (36, 596710), (40, 537039), (45, 477368), (60, 358026), (72, 298355), (90, 238684), (120, 179013), (180, 119342), (360, 59671)]