19889415

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1619}}^1$

素因数の和:1653

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 23656185

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 27, 35, 39, 45, 63, 65, 91, 105, 117, 135, 189, 195, 273, 315, 351, 455, 585, 819, 945, 1365, 1619, 1755, 2457, 4095, 4857, 8095, 11333, 12285, 14571, 21047, 24285, 33999, 43713, 56665, 63141, 72855, 101997, 105235, 147329, 169995, 189423, 218565, 305991, 315705, 441987, 509985, 568269, 736645, 947115, 1325961, 1529955, 2209935, 2841345, 3977883, 6629805, 19889415]

約数ペア:

[(1, 19889415), (3, 6629805), (5, 3977883), (7, 2841345), (9, 2209935), (13, 1529955), (15, 1325961), (21, 947115), (27, 736645), (35, 568269), (39, 509985), (45, 441987), (63, 315705), (65, 305991), (91, 218565), (105, 189423), (117, 169995), (135, 147329), (189, 105235), (195, 101997), (273, 72855), (315, 63141), (351, 56665), (455, 43713), (585, 33999), (819, 24285), (945, 21047), (1365, 14571), (1619, 12285), (1755, 11333), (2457, 8095), (4095, 4857)]