21098640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87911}}^1$

素因数の和:87927

約数の個数: 40

約数和(自身を含む): 65406528

約数和(自身を除く): 44307888

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87911, 175822, 263733, 351644, 439555, 527466, 703288, 879110, 1054932, 1318665, 1406576, 1758220, 2109864, 2637330, 3516440, 4219728, 5274660, 7032880, 10549320, 21098640]

約数ペア:

[(1, 21098640), (2, 10549320), (3, 7032880), (4, 5274660), (5, 4219728), (6, 3516440), (8, 2637330), (10, 2109864), (12, 1758220), (15, 1406576), (16, 1318665), (20, 1054932), (24, 879110), (30, 703288), (40, 527466), (48, 439555), (60, 351644), (80, 263733), (120, 175822), (240, 87911)]