21573370

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1$

素因数の和:335

約数の個数: 64

約数和(自身を含む): 48416256

約数和(自身を除く): 26842886

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 151, 157, 182, 302, 314, 455, 755, 785, 910, 1057, 1099, 1510, 1570, 1963, 2041, 2114, 2198, 3926, 4082, 5285, 5495, 9815, 10205, 10570, 10990, 13741, 14287, 19630, 20410, 23707, 27482, 28574, 47414, 68705, 71435, 118535, 137410, 142870, 165949, 237070, 308191, 331898, 616382, 829745, 1540955, 1659490, 2157337, 3081910, 4314674, 10786685, 21573370]

約数ペア:

[(1, 21573370), (2, 10786685), (5, 4314674), (7, 3081910), (10, 2157337), (13, 1659490), (14, 1540955), (26, 829745), (35, 616382), (65, 331898), (70, 308191), (91, 237070), (130, 165949), (151, 142870), (157, 137410), (182, 118535), (302, 71435), (314, 68705), (455, 47414), (755, 28574), (785, 27482), (910, 23707), (1057, 20410), (1099, 19630), (1510, 14287), (1570, 13741), (1963, 10990), (2041, 10570), (2114, 10205), (2198, 9815), (3926, 5495), (4082, 5285)]