21185178

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{8269}}^1$

素因数の和:8342

約数の個数: 32

約数和(自身を含む): 49223040

約数和(自身を除く): 28037862

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 61, 122, 183, 366, 427, 854, 1281, 2562, 8269, 16538, 24807, 49614, 57883, 115766, 173649, 347298, 504409, 1008818, 1513227, 3026454, 3530863, 7061726, 10592589, 21185178]

約数ペア:

[(1, 21185178), (2, 10592589), (3, 7061726), (6, 3530863), (7, 3026454), (14, 1513227), (21, 1008818), (42, 504409), (61, 347298), (122, 173649), (183, 115766), (366, 57883), (427, 49614), (854, 24807), (1281, 16538), (2562, 8269)]