19681038

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{557}}^1$

素因数の和:729

約数の個数: 48

約数和(自身を含む): 46309536

約数和(自身を除く): 26628498

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 151, 234, 302, 453, 557, 906, 1114, 1359, 1671, 1963, 2718, 3342, 3926, 5013, 5889, 7241, 10026, 11778, 14482, 17667, 21723, 35334, 43446, 65169, 84107, 130338, 168214, 252321, 504642, 756963, 1093391, 1513926, 2186782, 3280173, 6560346, 9840519, 19681038]

約数ペア:

[(1, 19681038), (2, 9840519), (3, 6560346), (6, 3280173), (9, 2186782), (13, 1513926), (18, 1093391), (26, 756963), (39, 504642), (78, 252321), (117, 168214), (151, 130338), (234, 84107), (302, 65169), (453, 43446), (557, 35334), (906, 21723), (1114, 17667), (1359, 14482), (1671, 11778), (1963, 10026), (2718, 7241), (3342, 5889), (3926, 5013)]