21887775

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1069}}^1$

素因数の和:1105

約数の個数: 72

約数和(自身を含む): 48295520

約数和(自身を除く): 26407745

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 25, 35, 39, 45, 63, 65, 75, 91, 105, 117, 175, 195, 225, 273, 315, 325, 455, 525, 585, 819, 975, 1069, 1365, 1575, 2275, 2925, 3207, 4095, 5345, 6825, 7483, 9621, 13897, 16035, 20475, 22449, 26725, 37415, 41691, 48105, 67347, 69485, 80175, 97279, 112245, 125073, 187075, 208455, 240525, 291837, 336735, 347425, 486395, 561225, 625365, 875511, 1042275, 1459185, 1683675, 2431975, 3126825, 4377555, 7295925, 21887775]

約数ペア:

[(1, 21887775), (3, 7295925), (5, 4377555), (7, 3126825), (9, 2431975), (13, 1683675), (15, 1459185), (21, 1042275), (25, 875511), (35, 625365), (39, 561225), (45, 486395), (63, 347425), (65, 336735), (75, 291837), (91, 240525), (105, 208455), (117, 187075), (175, 125073), (195, 112245), (225, 97279), (273, 80175), (315, 69485), (325, 67347), (455, 48105), (525, 41691), (585, 37415), (819, 26725), (975, 22449), (1069, 20475), (1365, 16035), (1575, 13897), (2275, 9621), (2925, 7483), (3207, 6825), (4095, 5345)]