18618721235

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1\times {\mathrm{4219}}^1$

素因数の和:4571

約数の個数: 32

約数和(自身を含む): 23189068800

約数和(自身を除く): 4570347565

約数列:

[1, 5, 47, 89, 211, 235, 445, 1055, 4183, 4219, 9917, 18779, 20915, 21095, 49585, 93895, 198293, 375491, 882613, 890209, 991465, 1877455, 4413065, 4451045, 17648077, 41839823, 79228601, 88240385, 209199115, 396143005, 3723744247, 18618721235]

約数ペア:

[(1, 18618721235), (5, 3723744247), (47, 396143005), (89, 209199115), (211, 88240385), (235, 79228601), (445, 41839823), (1055, 17648077), (4183, 4451045), (4219, 4413065), (9917, 1877455), (18779, 991465), (20915, 890209), (21095, 882613), (49585, 375491), (93895, 198293)]