21842025

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{463}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 39354624

約数和(自身を除く): 17512599

約数列:

[1, 3, 5, 15, 17, 25, 37, 51, 75, 85, 111, 185, 255, 425, 463, 555, 629, 925, 1275, 1389, 1887, 2315, 2775, 3145, 6945, 7871, 9435, 11575, 15725, 17131, 23613, 34725, 39355, 47175, 51393, 85655, 118065, 196775, 256965, 291227, 428275, 590325, 873681, 1284825, 1456135, 4368405, 7280675, 21842025]

約数ペア:

[(1, 21842025), (3, 7280675), (5, 4368405), (15, 1456135), (17, 1284825), (25, 873681), (37, 590325), (51, 428275), (75, 291227), (85, 256965), (111, 196775), (185, 118065), (255, 85655), (425, 51393), (463, 47175), (555, 39355), (629, 34725), (925, 23613), (1275, 17131), (1389, 15725), (1887, 11575), (2315, 9435), (2775, 7871), (3145, 6945)]