19639802

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^2$

素因数の和:171

約数の個数: 48

約数和(自身を含む): 38072832

約数和(自身を除く): 18433030

約数列:

[1, 2, 7, 13, 14, 26, 31, 59, 62, 91, 118, 182, 217, 403, 413, 434, 767, 806, 826, 1534, 1829, 2821, 3481, 3658, 5369, 5642, 6962, 10738, 12803, 23777, 24367, 25606, 45253, 47554, 48734, 90506, 107911, 166439, 215822, 316771, 332878, 633542, 755377, 1402843, 1510754, 2805686, 9819901, 19639802]

約数ペア:

[(1, 19639802), (2, 9819901), (7, 2805686), (13, 1510754), (14, 1402843), (26, 755377), (31, 633542), (59, 332878), (62, 316771), (91, 215822), (118, 166439), (182, 107911), (217, 90506), (403, 48734), (413, 47554), (434, 45253), (767, 25606), (806, 24367), (826, 23777), (1534, 12803), (1829, 10738), (2821, 6962), (3481, 5642), (3658, 5369)]