19539351

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 32550336

約数和(自身を除く): 13010985

約数列:

[1, 3, 9, 13, 23, 39, 53, 69, 117, 137, 159, 207, 299, 411, 477, 689, 897, 1219, 1233, 1781, 2067, 2691, 3151, 3657, 5343, 6201, 7261, 9453, 10971, 15847, 16029, 21783, 28359, 40963, 47541, 65349, 94393, 122889, 142623, 167003, 283179, 368667, 501009, 849537, 1503027, 2171039, 6513117, 19539351]

約数ペア:

[(1, 19539351), (3, 6513117), (9, 2171039), (13, 1503027), (23, 849537), (39, 501009), (53, 368667), (69, 283179), (117, 167003), (137, 142623), (159, 122889), (207, 94393), (299, 65349), (411, 47541), (477, 40963), (689, 28359), (897, 21783), (1219, 16029), (1233, 15847), (1781, 10971), (2067, 9453), (2691, 7261), (3151, 6201), (3657, 5343)]