21529129916

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{99251}}^1$

素因数の和:99450

約数の個数: 48

約数和(自身を含む): 44109176832

約数和(自身を除く): 22580046916

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 127, 244, 254, 427, 508, 854, 889, 1708, 1778, 3556, 7747, 15494, 30988, 54229, 99251, 108458, 198502, 216916, 397004, 694757, 1389514, 2779028, 6054311, 12108622, 12604877, 24217244, 25209754, 42380177, 50419508, 84760354, 88234139, 169520708, 176468278, 352936556, 768897497, 1537794994, 3075589988, 5382282479, 10764564958, 21529129916]

約数ペア:

[(1, 21529129916), (2, 10764564958), (4, 5382282479), (7, 3075589988), (14, 1537794994), (28, 768897497), (61, 352936556), (122, 176468278), (127, 169520708), (244, 88234139), (254, 84760354), (427, 50419508), (508, 42380177), (854, 25209754), (889, 24217244), (1708, 12604877), (1778, 12108622), (3556, 6054311), (7747, 2779028), (15494, 1389514), (30988, 694757), (54229, 397004), (99251, 216916), (108458, 198502)]