21312816

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{463}}^1$

素因数の和:618

約数の個数: 80

約数和(自身を含む): 63519744

約数和(自身を除く): 42206928

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 137, 168, 274, 336, 411, 463, 548, 822, 926, 959, 1096, 1389, 1644, 1852, 1918, 2192, 2778, 2877, 3241, 3288, 3704, 3836, 5556, 5754, 6482, 6576, 7408, 7672, 9723, 11112, 11508, 12964, 15344, 19446, 22224, 23016, 25928, 38892, 46032, 51856, 63431, 77784, 126862, 155568, 190293, 253724, 380586, 444017, 507448, 761172, 888034, 1014896, 1332051, 1522344, 1776068, 2664102, 3044688, 3552136, 5328204, 7104272, 10656408, 21312816]

約数ペア:

[(1, 21312816), (2, 10656408), (3, 7104272), (4, 5328204), (6, 3552136), (7, 3044688), (8, 2664102), (12, 1776068), (14, 1522344), (16, 1332051), (21, 1014896), (24, 888034), (28, 761172), (42, 507448), (48, 444017), (56, 380586), (84, 253724), (112, 190293), (137, 155568), (168, 126862), (274, 77784), (336, 63431), (411, 51856), (463, 46032), (548, 38892), (822, 25928), (926, 23016), (959, 22224), (1096, 19446), (1389, 15344), (1644, 12964), (1852, 11508), (1918, 11112), (2192, 9723), (2778, 7672), (2877, 7408), (3241, 6576), (3288, 6482), (3704, 5754), (3836, 5556)]