20904712

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1657}}^1$

素因数の和:1765

約数の個数: 32

約数和(自身を含む): 41781600

約数和(自身を除く): 20876888

約数列:

[1, 2, 4, 8, 19, 38, 76, 83, 152, 166, 332, 664, 1577, 1657, 3154, 3314, 6308, 6628, 12616, 13256, 31483, 62966, 125932, 137531, 251864, 275062, 550124, 1100248, 2613089, 5226178, 10452356, 20904712]

約数ペア:

[(1, 20904712), (2, 10452356), (4, 5226178), (8, 2613089), (19, 1100248), (38, 550124), (76, 275062), (83, 251864), (152, 137531), (166, 125932), (332, 62966), (664, 31483), (1577, 13256), (1657, 12616), (3154, 6628), (3314, 6308)]