20939757999

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1\times {\mathrm{4339}}^1$

素因数の和:4715

約数の個数: 32

約数和(自身を含む): 28698163200

約数和(自身を除く): 7758405201

約数列:

[1, 3, 71, 139, 163, 213, 417, 489, 4339, 9869, 11573, 13017, 22657, 29607, 34719, 67971, 308069, 603121, 707257, 924207, 1608647, 1809363, 2121771, 4825941, 42821591, 50215247, 98308723, 128464773, 150645741, 294926169, 6979919333, 20939757999]

約数ペア:

[(1, 20939757999), (3, 6979919333), (71, 294926169), (139, 150645741), (163, 128464773), (213, 98308723), (417, 50215247), (489, 42821591), (4339, 4825941), (9869, 2121771), (11573, 1809363), (13017, 1608647), (22657, 924207), (29607, 707257), (34719, 603121), (67971, 308069)]