19808776

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2411}}^1$

素因数の和:2509

約数の個数: 32

約数和(自身を含む): 40521600

約数和(自身を除く): 20712824

約数列:

[1, 2, 4, 8, 13, 26, 52, 79, 104, 158, 316, 632, 1027, 2054, 2411, 4108, 4822, 8216, 9644, 19288, 31343, 62686, 125372, 190469, 250744, 380938, 761876, 1523752, 2476097, 4952194, 9904388, 19808776]

約数ペア:

[(1, 19808776), (2, 9904388), (4, 4952194), (8, 2476097), (13, 1523752), (26, 761876), (52, 380938), (79, 250744), (104, 190469), (158, 125372), (316, 62686), (632, 31343), (1027, 19288), (2054, 9644), (2411, 8216), (4108, 4822)]