19639256

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{509}}^1$

素因数の和:588

約数の個数: 64

約数和(自身を含む): 46267200

約数和(自身を除く): 26627944

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 53, 56, 91, 104, 106, 182, 212, 364, 371, 424, 509, 689, 728, 742, 1018, 1378, 1484, 2036, 2756, 2968, 3563, 4072, 4823, 5512, 6617, 7126, 9646, 13234, 14252, 19292, 26468, 26977, 28504, 38584, 46319, 52936, 53954, 92638, 107908, 185276, 188839, 215816, 350701, 370552, 377678, 701402, 755356, 1402804, 1510712, 2454907, 2805608, 4909814, 9819628, 19639256]

約数ペア:

[(1, 19639256), (2, 9819628), (4, 4909814), (7, 2805608), (8, 2454907), (13, 1510712), (14, 1402804), (26, 755356), (28, 701402), (52, 377678), (53, 370552), (56, 350701), (91, 215816), (104, 188839), (106, 185276), (182, 107908), (212, 92638), (364, 53954), (371, 52936), (424, 46319), (509, 38584), (689, 28504), (728, 26977), (742, 26468), (1018, 19292), (1378, 14252), (1484, 13234), (2036, 9646), (2756, 7126), (2968, 6617), (3563, 5512), (4072, 4823)]