19518390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1583}}^1$

素因数の和:1733

約数の個数: 48

約数和(自身を含む): 51150528

約数和(自身を除く): 31632138

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 137, 274, 411, 685, 822, 1233, 1370, 1583, 2055, 2466, 3166, 4110, 4749, 6165, 7915, 9498, 12330, 14247, 15830, 23745, 28494, 47490, 71235, 142470, 216871, 433742, 650613, 1084355, 1301226, 1951839, 2168710, 3253065, 3903678, 6506130, 9759195, 19518390]

約数ペア:

[(1, 19518390), (2, 9759195), (3, 6506130), (5, 3903678), (6, 3253065), (9, 2168710), (10, 1951839), (15, 1301226), (18, 1084355), (30, 650613), (45, 433742), (90, 216871), (137, 142470), (274, 71235), (411, 47490), (685, 28494), (822, 23745), (1233, 15830), (1370, 14247), (1583, 12330), (2055, 9498), (2466, 7915), (3166, 6165), (4110, 4749)]