19988178

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{67987}}^1$

素因数の和:68006

約数の個数: 24

約数和(自身を含む): 46503792

約数和(自身を除く): 26515614

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 67987, 135974, 203961, 407922, 475909, 951818, 1427727, 2855454, 3331363, 6662726, 9994089, 19988178]

約数ペア:

[(1, 19988178), (2, 9994089), (3, 6662726), (6, 3331363), (7, 2855454), (14, 1427727), (21, 951818), (42, 475909), (49, 407922), (98, 203961), (147, 135974), (294, 67987)]