21173752

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{139301}}^1$

素因数の和:139326

約数の個数: 16

約数和(自身を含む): 41790600

約数和(自身を除く): 20616848

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 139301, 278602, 557204, 1114408, 2646719, 5293438, 10586876, 21173752]

約数ペア:

[(1, 21173752), (2, 10586876), (4, 5293438), (8, 2646719), (19, 1114408), (38, 557204), (76, 278602), (152, 139301)]