21458600

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{5647}}^1$

素因数の和:5682

約数の個数: 48

約数和(自身を含む): 52526400

約数和(自身を除く): 31067800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 5647, 11294, 22588, 28235, 45176, 56470, 107293, 112940, 141175, 214586, 225880, 282350, 429172, 536465, 564700, 858344, 1072930, 1129400, 2145860, 2682325, 4291720, 5364650, 10729300, 21458600]

約数ペア:

[(1, 21458600), (2, 10729300), (4, 5364650), (5, 4291720), (8, 2682325), (10, 2145860), (19, 1129400), (20, 1072930), (25, 858344), (38, 564700), (40, 536465), (50, 429172), (76, 282350), (95, 225880), (100, 214586), (152, 141175), (190, 112940), (200, 107293), (380, 56470), (475, 45176), (760, 28235), (950, 22588), (1900, 11294), (3800, 5647)]