18290181

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{563}}^1$

素因数の和:610

約数の個数: 48

約数和(自身を含む): 32405184

約数和(自身を除く): 14115003

約数列:

[1, 3, 7, 13, 17, 21, 39, 49, 51, 91, 119, 147, 221, 273, 357, 563, 637, 663, 833, 1547, 1689, 1911, 2499, 3941, 4641, 7319, 9571, 10829, 11823, 21957, 27587, 28713, 32487, 51233, 66997, 82761, 124423, 153699, 200991, 358631, 373269, 468979, 870961, 1075893, 1406937, 2612883, 6096727, 18290181]

約数ペア:

[(1, 18290181), (3, 6096727), (7, 2612883), (13, 1406937), (17, 1075893), (21, 870961), (39, 468979), (49, 373269), (51, 358631), (91, 200991), (119, 153699), (147, 124423), (221, 82761), (273, 66997), (357, 51233), (563, 32487), (637, 28713), (663, 27587), (833, 21957), (1547, 11823), (1689, 10829), (1911, 9571), (2499, 7319), (3941, 4641)]