19749015

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1$

素因数の和:83

約数の個数: 120

約数和(自身を含む): 43257984

約数和(自身を除く): 23508969

約数列:

[1, 3, 5, 9, 11, 13, 15, 27, 31, 33, 39, 45, 55, 65, 81, 93, 99, 117, 121, 135, 143, 155, 165, 195, 279, 297, 341, 351, 363, 403, 405, 429, 465, 495, 585, 605, 715, 837, 891, 1023, 1053, 1089, 1209, 1287, 1395, 1485, 1573, 1705, 1755, 1815, 2015, 2145, 2511, 3069, 3267, 3627, 3751, 3861, 4185, 4433, 4455, 4719, 5115, 5265, 5445, 6045, 6435, 7865, 9207, 9801, 10881, 11253, 11583, 12555, 13299, 14157, 15345, 16335, 18135, 18755, 19305, 22165, 23595, 27621, 32643, 33759, 39897, 42471, 46035, 48763, 49005, 54405, 56265, 57915, 66495, 70785, 101277, 119691, 127413, 138105, 146289, 163215, 168795, 199485, 212355, 243815, 303831, 359073, 438867, 506385, 598455, 637065, 731445, 1316601, 1519155, 1795365, 2194335, 3949803, 6583005, 19749015]

約数ペア:

[(1, 19749015), (3, 6583005), (5, 3949803), (9, 2194335), (11, 1795365), (13, 1519155), (15, 1316601), (27, 731445), (31, 637065), (33, 598455), (39, 506385), (45, 438867), (55, 359073), (65, 303831), (81, 243815), (93, 212355), (99, 199485), (117, 168795), (121, 163215), (135, 146289), (143, 138105), (155, 127413), (165, 119691), (195, 101277), (279, 70785), (297, 66495), (341, 57915), (351, 56265), (363, 54405), (403, 49005), (405, 48763), (429, 46035), (465, 42471), (495, 39897), (585, 33759), (605, 32643), (715, 27621), (837, 23595), (891, 22165), (1023, 19305), (1053, 18755), (1089, 18135), (1209, 16335), (1287, 15345), (1395, 14157), (1485, 13299), (1573, 12555), (1705, 11583), (1755, 11253), (1815, 10881), (2015, 9801), (2145, 9207), (2511, 7865), (3069, 6435), (3267, 6045), (3627, 5445), (3751, 5265), (3861, 5115), (4185, 4719), (4433, 4455)]