27821703

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{457}}^1$

素因数の和:703

約数の個数: 32

約数和(自身を含む): 45961216

約数和(自身を除く): 18139513

約数列:

[1, 3, 7, 13, 21, 39, 91, 223, 273, 457, 669, 1371, 1561, 2899, 3199, 4683, 5941, 8697, 9597, 17823, 20293, 41587, 60879, 101911, 124761, 305733, 713377, 1324843, 2140131, 3974529, 9273901, 27821703]

約数ペア:

[(1, 27821703), (3, 9273901), (7, 3974529), (13, 2140131), (21, 1324843), (39, 713377), (91, 305733), (223, 124761), (273, 101911), (457, 60879), (669, 41587), (1371, 20293), (1561, 17823), (2899, 9597), (3199, 8697), (4683, 5941)]