21904980972

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{2971}}^1\times {\mathrm{12539}}^1$

素因数の和:15531

約数の個数: 72

約数和(自身を含む): 59481132480

約数和(自身を除く): 37576151508

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 588, 2971, 5942, 8913, 11884, 12539, 17826, 20797, 25078, 35652, 37617, 41594, 50156, 62391, 75234, 83188, 87773, 124782, 145579, 150468, 175546, 249564, 263319, 291158, 351092, 436737, 526638, 582316, 614411, 873474, 1053276, 1228822, 1746948, 1843233, 2457644, 3686466, 7372932, 37253369, 74506738, 111760107, 149013476, 223520214, 260773583, 447040428, 521547166, 782320749, 1043094332, 1564641498, 1825415081, 3129282996, 3650830162, 5476245243, 7301660324, 10952490486, 21904980972]

約数ペア:

[(1, 21904980972), (2, 10952490486), (3, 7301660324), (4, 5476245243), (6, 3650830162), (7, 3129282996), (12, 1825415081), (14, 1564641498), (21, 1043094332), (28, 782320749), (42, 521547166), (49, 447040428), (84, 260773583), (98, 223520214), (147, 149013476), (196, 111760107), (294, 74506738), (588, 37253369), (2971, 7372932), (5942, 3686466), (8913, 2457644), (11884, 1843233), (12539, 1746948), (17826, 1228822), (20797, 1053276), (25078, 873474), (35652, 614411), (37617, 582316), (41594, 526638), (50156, 436737), (62391, 351092), (75234, 291158), (83188, 263319), (87773, 249564), (124782, 175546), (145579, 150468)]