12971764

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{619}}^1$

素因数の和:680

約数の個数: 36

約数和(自身を含む): 25415040

約数和(自身を除く): 12443276

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 169, 338, 403, 619, 676, 806, 1238, 1612, 2476, 5239, 8047, 10478, 16094, 19189, 20956, 32188, 38378, 76756, 104611, 209222, 249457, 418444, 498914, 997828, 3242941, 6485882, 12971764]

約数ペア:

[(1, 12971764), (2, 6485882), (4, 3242941), (13, 997828), (26, 498914), (31, 418444), (52, 249457), (62, 209222), (124, 104611), (169, 76756), (338, 38378), (403, 32188), (619, 20956), (676, 19189), (806, 16094), (1238, 10478), (1612, 8047), (2476, 5239)]