21024325

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 32569344

約数和(自身を除く): 11545019

約数列:

[1, 5, 7, 17, 25, 35, 37, 85, 119, 175, 185, 191, 259, 425, 595, 629, 925, 955, 1295, 1337, 2975, 3145, 3247, 4403, 4775, 6475, 6685, 7067, 15725, 16235, 22015, 22729, 33425, 35335, 49469, 81175, 110075, 113645, 120139, 176675, 247345, 568225, 600695, 840973, 1236725, 3003475, 4204865, 21024325]

約数ペア:

[(1, 21024325), (5, 4204865), (7, 3003475), (17, 1236725), (25, 840973), (35, 600695), (37, 568225), (85, 247345), (119, 176675), (175, 120139), (185, 113645), (191, 110075), (259, 81175), (425, 49469), (595, 35335), (629, 33425), (925, 22729), (955, 22015), (1295, 16235), (1337, 15725), (2975, 7067), (3145, 6685), (3247, 6475), (4403, 4775)]