21109095

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3527}}^1$

素因数の和:3564

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 22920345

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 57, 63, 95, 105, 133, 171, 285, 315, 399, 665, 855, 1197, 1995, 3527, 5985, 10581, 17635, 24689, 31743, 52905, 67013, 74067, 123445, 158715, 201039, 222201, 335065, 370335, 469091, 603117, 1005195, 1111005, 1407273, 2345455, 3015585, 4221819, 7036365, 21109095]

約数ペア:

[(1, 21109095), (3, 7036365), (5, 4221819), (7, 3015585), (9, 2345455), (15, 1407273), (19, 1111005), (21, 1005195), (35, 603117), (45, 469091), (57, 370335), (63, 335065), (95, 222201), (105, 201039), (133, 158715), (171, 123445), (285, 74067), (315, 67013), (399, 52905), (665, 31743), (855, 24689), (1197, 17635), (1995, 10581), (3527, 5985)]