18921420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{15017}}^1$

素因数の和:15039

約数の個数: 72

約数和(自身を含む): 65598624

約数和(自身を除く): 46677204

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 15017, 30034, 45051, 60068, 75085, 90102, 105119, 135153, 150170, 180204, 210238, 225255, 270306, 300340, 315357, 420476, 450510, 525595, 540612, 630714, 675765, 901020, 946071, 1051190, 1261428, 1351530, 1576785, 1892142, 2102380, 2703060, 3153570, 3784284, 4730355, 6307140, 9460710, 18921420]

約数ペア:

[(1, 18921420), (2, 9460710), (3, 6307140), (4, 4730355), (5, 3784284), (6, 3153570), (7, 2703060), (9, 2102380), (10, 1892142), (12, 1576785), (14, 1351530), (15, 1261428), (18, 1051190), (20, 946071), (21, 901020), (28, 675765), (30, 630714), (35, 540612), (36, 525595), (42, 450510), (45, 420476), (60, 315357), (63, 300340), (70, 270306), (84, 225255), (90, 210238), (105, 180204), (126, 150170), (140, 135153), (180, 105119), (210, 90102), (252, 75085), (315, 60068), (420, 45051), (630, 30034), (1260, 15017)]