18341648

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{809}}^1$

素因数の和:939

約数の個数: 40

約数和(自身を含む): 38669400

約数和(自身を除く): 20327752

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 109, 208, 218, 436, 809, 872, 1417, 1618, 1744, 2834, 3236, 5668, 6472, 10517, 11336, 12944, 21034, 22672, 42068, 84136, 88181, 168272, 176362, 352724, 705448, 1146353, 1410896, 2292706, 4585412, 9170824, 18341648]

約数ペア:

[(1, 18341648), (2, 9170824), (4, 4585412), (8, 2292706), (13, 1410896), (16, 1146353), (26, 705448), (52, 352724), (104, 176362), (109, 168272), (208, 88181), (218, 84136), (436, 42068), (809, 22672), (872, 21034), (1417, 12944), (1618, 11336), (1744, 10517), (2834, 6472), (3236, 5668)]