21816795

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1453}}^1$

素因数の和:1492

約数の個数: 64

約数和(自身を含む): 46900224

約数和(自身を除く): 25083429

約数列:

[1, 3, 5, 7, 11, 13, 15, 21, 33, 35, 39, 55, 65, 77, 91, 105, 143, 165, 195, 231, 273, 385, 429, 455, 715, 1001, 1155, 1365, 1453, 2145, 3003, 4359, 5005, 7265, 10171, 15015, 15983, 18889, 21795, 30513, 47949, 50855, 56667, 79915, 94445, 111881, 132223, 152565, 207779, 239745, 283335, 335643, 396669, 559405, 623337, 661115, 1038895, 1454453, 1678215, 1983345, 3116685, 4363359, 7272265, 21816795]

約数ペア:

[(1, 21816795), (3, 7272265), (5, 4363359), (7, 3116685), (11, 1983345), (13, 1678215), (15, 1454453), (21, 1038895), (33, 661115), (35, 623337), (39, 559405), (55, 396669), (65, 335643), (77, 283335), (91, 239745), (105, 207779), (143, 152565), (165, 132223), (195, 111881), (231, 94445), (273, 79915), (385, 56667), (429, 50855), (455, 47949), (715, 30513), (1001, 21795), (1155, 18889), (1365, 15983), (1453, 15015), (2145, 10171), (3003, 7265), (4359, 5005)]