21343365

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:243

約数の個数: 64

約数和(自身を含む): 40953600

約数和(自身を除く): 19610235

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 53, 57, 95, 135, 157, 159, 171, 265, 285, 471, 477, 513, 785, 795, 855, 1007, 1413, 1431, 2355, 2385, 2565, 2983, 3021, 4239, 5035, 7065, 7155, 8321, 8949, 9063, 14915, 15105, 21195, 24963, 26847, 27189, 41605, 44745, 45315, 74889, 80541, 124815, 134235, 135945, 158099, 224667, 374445, 402705, 474297, 790495, 1123335, 1422891, 2371485, 4268673, 7114455, 21343365]

約数ペア:

[(1, 21343365), (3, 7114455), (5, 4268673), (9, 2371485), (15, 1422891), (19, 1123335), (27, 790495), (45, 474297), (53, 402705), (57, 374445), (95, 224667), (135, 158099), (157, 135945), (159, 134235), (171, 124815), (265, 80541), (285, 74889), (471, 45315), (477, 44745), (513, 41605), (785, 27189), (795, 26847), (855, 24963), (1007, 21195), (1413, 15105), (1431, 14915), (2355, 9063), (2385, 8949), (2565, 8321), (2983, 7155), (3021, 7065), (4239, 5035)]