9921275

素因数分解:

$5^2\times 7^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1$

素因数の和:133

約数の個数: 48

約数和(自身を含む): 15624000

約数和(自身を除く): 5702725

約数列:

[1, 5, 7, 13, 25, 35, 49, 65, 89, 91, 175, 245, 325, 343, 445, 455, 623, 637, 1157, 1225, 1715, 2225, 2275, 3115, 3185, 4361, 4459, 5785, 8099, 8575, 15575, 15925, 21805, 22295, 28925, 30527, 40495, 56693, 109025, 111475, 152635, 202475, 283465, 396851, 763175, 1417325, 1984255, 9921275]

約数ペア:

[(1, 9921275), (5, 1984255), (7, 1417325), (13, 763175), (25, 396851), (35, 283465), (49, 202475), (65, 152635), (89, 111475), (91, 109025), (175, 56693), (245, 40495), (325, 30527), (343, 28925), (445, 22295), (455, 21805), (623, 15925), (637, 15575), (1157, 8575), (1225, 8099), (1715, 5785), (2225, 4459), (2275, 4361), (3115, 3185)]