19686516

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{439}}^1$

素因数の和:584

約数の個数: 48

約数和(自身を含む): 47752320

約数和(自身を除く): 28065804

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 101, 111, 148, 202, 222, 303, 404, 439, 444, 606, 878, 1212, 1317, 1756, 2634, 3737, 5268, 7474, 11211, 14948, 16243, 22422, 32486, 44339, 44844, 48729, 64972, 88678, 97458, 133017, 177356, 194916, 266034, 532068, 1640543, 3281086, 4921629, 6562172, 9843258, 19686516]

約数ペア:

[(1, 19686516), (2, 9843258), (3, 6562172), (4, 4921629), (6, 3281086), (12, 1640543), (37, 532068), (74, 266034), (101, 194916), (111, 177356), (148, 133017), (202, 97458), (222, 88678), (303, 64972), (404, 48729), (439, 44844), (444, 44339), (606, 32486), (878, 22422), (1212, 16243), (1317, 14948), (1756, 11211), (2634, 7474), (3737, 5268)]