217993485

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{283}}^1\times {\mathrm{577}}^1$

素因数の和:957

約数の個数: 32

約数和(自身を含む): 354568320

約数和(自身を除く): 136574835

約数列:

[1, 3, 5, 15, 89, 267, 283, 445, 577, 849, 1335, 1415, 1731, 2885, 4245, 8655, 25187, 51353, 75561, 125935, 154059, 163291, 256765, 377805, 489873, 770295, 816455, 2449365, 14532899, 43598697, 72664495, 217993485]

約数ペア:

[(1, 217993485), (3, 72664495), (5, 43598697), (15, 14532899), (89, 2449365), (267, 816455), (283, 770295), (445, 489873), (577, 377805), (849, 256765), (1335, 163291), (1415, 154059), (1731, 125935), (2885, 75561), (4245, 51353), (8655, 25187)]