19518992636

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{383417}}^1$

素因数の和:383534

約数の個数: 48

約数和(自身を含む): 40580961120

約数和(自身を除く): 21061968484

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 89, 143, 178, 286, 356, 572, 979, 1157, 1958, 2314, 3916, 4628, 12727, 25454, 50908, 383417, 766834, 1533668, 4217587, 4984421, 8435174, 9968842, 16870348, 19937684, 34124113, 54828631, 68248226, 109657262, 136496452, 219314524, 375365243, 443613469, 750730486, 887226938, 1501460972, 1774453876, 4879748159, 9759496318, 19518992636]

約数ペア:

[(1, 19518992636), (2, 9759496318), (4, 4879748159), (11, 1774453876), (13, 1501460972), (22, 887226938), (26, 750730486), (44, 443613469), (52, 375365243), (89, 219314524), (143, 136496452), (178, 109657262), (286, 68248226), (356, 54828631), (572, 34124113), (979, 19937684), (1157, 16870348), (1958, 9968842), (2314, 8435174), (3916, 4984421), (4628, 4217587), (12727, 1533668), (25454, 766834), (50908, 383417)]