21950775

素因数分解:

$3^2\times 5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{181}}^1$

素因数の和:222

約数の個数: 108

約数和(自身を含む): 50168664

約数和(自身を除く): 28217889

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 25, 33, 35, 45, 49, 55, 63, 75, 77, 99, 105, 147, 165, 175, 181, 225, 231, 245, 275, 315, 385, 441, 495, 525, 539, 543, 693, 735, 825, 905, 1155, 1225, 1267, 1575, 1617, 1629, 1925, 1991, 2205, 2475, 2695, 2715, 3465, 3675, 3801, 4525, 4851, 5775, 5973, 6335, 8085, 8145, 8869, 9955, 11025, 11403, 13475, 13575, 13937, 17325, 17919, 19005, 24255, 26607, 29865, 31675, 40425, 40725, 41811, 44345, 49775, 57015, 69685, 79821, 89595, 95025, 97559, 121275, 125433, 133035, 149325, 209055, 221725, 285075, 292677, 348425, 399105, 447975, 487795, 627165, 665175, 878031, 1045275, 1463385, 1995525, 2438975, 3135825, 4390155, 7316925, 21950775]

約数ペア:

[(1, 21950775), (3, 7316925), (5, 4390155), (7, 3135825), (9, 2438975), (11, 1995525), (15, 1463385), (21, 1045275), (25, 878031), (33, 665175), (35, 627165), (45, 487795), (49, 447975), (55, 399105), (63, 348425), (75, 292677), (77, 285075), (99, 221725), (105, 209055), (147, 149325), (165, 133035), (175, 125433), (181, 121275), (225, 97559), (231, 95025), (245, 89595), (275, 79821), (315, 69685), (385, 57015), (441, 49775), (495, 44345), (525, 41811), (539, 40725), (543, 40425), (693, 31675), (735, 29865), (825, 26607), (905, 24255), (1155, 19005), (1225, 17919), (1267, 17325), (1575, 13937), (1617, 13575), (1629, 13475), (1925, 11403), (1991, 11025), (2205, 9955), (2475, 8869), (2695, 8145), (2715, 8085), (3465, 6335), (3675, 5973), (3801, 5775), (4525, 4851)]