19717802

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1$

素因数の和:458

約数の個数: 32

約数和(自身を含む): 33339600

約数和(自身を除く): 13621798

約数列:

[1, 2, 13, 26, 41, 53, 82, 106, 349, 533, 689, 698, 1066, 1378, 2173, 4346, 4537, 9074, 14309, 18497, 28249, 28618, 36994, 56498, 186017, 240461, 372034, 480922, 758377, 1516754, 9858901, 19717802]

約数ペア:

[(1, 19717802), (2, 9858901), (13, 1516754), (26, 758377), (41, 480922), (53, 372034), (82, 240461), (106, 186017), (349, 56498), (533, 36994), (689, 28618), (698, 28249), (1066, 18497), (1378, 14309), (2173, 9074), (4346, 4537)]