19975916

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{3923}}^1$

素因数の和:4013

約数の個数: 24

約数和(自身を含む): 37356480

約数和(自身を除く): 17380564

約数列:

[1, 2, 4, 19, 38, 67, 76, 134, 268, 1273, 2546, 3923, 5092, 7846, 15692, 74537, 149074, 262841, 298148, 525682, 1051364, 4993979, 9987958, 19975916]

約数ペア:

[(1, 19975916), (2, 9987958), (4, 4993979), (19, 1051364), (38, 525682), (67, 298148), (76, 262841), (134, 149074), (268, 74537), (1273, 15692), (2546, 7846), (3923, 5092)]