18737648

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{61637}}^1$

素因数の和:61664

約数の個数: 20

約数和(自身を含む): 38215560

約数和(自身を除く): 19477912

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 61637, 123274, 246548, 493096, 986192, 1171103, 2342206, 4684412, 9368824, 18737648]

約数ペア:

[(1, 18737648), (2, 9368824), (4, 4684412), (8, 2342206), (16, 1171103), (19, 986192), (38, 493096), (76, 246548), (152, 123274), (304, 61637)]