21591570

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{719}}^1$

素因数の和:760

約数の個数: 128

約数和(自身を含む): 69672960

約数和(自身を除く): 48081390

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 13, 14, 15, 21, 22, 26, 30, 33, 35, 39, 42, 55, 65, 66, 70, 77, 78, 91, 105, 110, 130, 143, 154, 165, 182, 195, 210, 231, 273, 286, 330, 385, 390, 429, 455, 462, 546, 715, 719, 770, 858, 910, 1001, 1155, 1365, 1430, 1438, 2002, 2145, 2157, 2310, 2730, 3003, 3595, 4290, 4314, 5005, 5033, 6006, 7190, 7909, 9347, 10010, 10066, 10785, 15015, 15099, 15818, 18694, 21570, 23727, 25165, 28041, 30030, 30198, 39545, 46735, 47454, 50330, 55363, 56082, 65429, 75495, 79090, 93470, 102817, 110726, 118635, 130858, 140205, 150990, 166089, 196287, 205634, 237270, 276815, 280410, 308451, 327145, 332178, 392574, 514085, 553630, 616902, 654290, 719719, 830445, 981435, 1028170, 1439438, 1542255, 1660890, 1962870, 2159157, 3084510, 3598595, 4318314, 7197190, 10795785, 21591570]

約数ペア:

[(1, 21591570), (2, 10795785), (3, 7197190), (5, 4318314), (6, 3598595), (7, 3084510), (10, 2159157), (11, 1962870), (13, 1660890), (14, 1542255), (15, 1439438), (21, 1028170), (22, 981435), (26, 830445), (30, 719719), (33, 654290), (35, 616902), (39, 553630), (42, 514085), (55, 392574), (65, 332178), (66, 327145), (70, 308451), (77, 280410), (78, 276815), (91, 237270), (105, 205634), (110, 196287), (130, 166089), (143, 150990), (154, 140205), (165, 130858), (182, 118635), (195, 110726), (210, 102817), (231, 93470), (273, 79090), (286, 75495), (330, 65429), (385, 56082), (390, 55363), (429, 50330), (455, 47454), (462, 46735), (546, 39545), (715, 30198), (719, 30030), (770, 28041), (858, 25165), (910, 23727), (1001, 21570), (1155, 18694), (1365, 15818), (1430, 15099), (1438, 15015), (2002, 10785), (2145, 10066), (2157, 10010), (2310, 9347), (2730, 7909), (3003, 7190), (3595, 6006), (4290, 5033), (4314, 5005)]