21864045

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 41171328

約数和(自身を除く): 19307283

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 151, 197, 245, 453, 591, 735, 755, 985, 1057, 1379, 2265, 2955, 3171, 4137, 5285, 6895, 7399, 9653, 15855, 20685, 22197, 28959, 29747, 36995, 48265, 89241, 110985, 144795, 148735, 208229, 446205, 624687, 1041145, 1457603, 3123435, 4372809, 7288015, 21864045]

約数ペア:

[(1, 21864045), (3, 7288015), (5, 4372809), (7, 3123435), (15, 1457603), (21, 1041145), (35, 624687), (49, 446205), (105, 208229), (147, 148735), (151, 144795), (197, 110985), (245, 89241), (453, 48265), (591, 36995), (735, 29747), (755, 28959), (985, 22197), (1057, 20685), (1379, 15855), (2265, 9653), (2955, 7399), (3171, 6895), (4137, 5285)]