21307364

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{4057}}^1$

素因数の和:4175

約数の個数: 24

約数和(自身を含む): 40563768

約数和(自身を除く): 19256404

約数列:

[1, 2, 4, 13, 26, 52, 101, 202, 404, 1313, 2626, 4057, 5252, 8114, 16228, 52741, 105482, 210964, 409757, 819514, 1639028, 5326841, 10653682, 21307364]

約数ペア:

[(1, 21307364), (2, 10653682), (4, 5326841), (13, 1639028), (26, 819514), (52, 409757), (101, 210964), (202, 105482), (404, 52741), (1313, 16228), (2626, 8114), (4057, 5252)]