221981104

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{42953}}^1$

素因数の和:42997

約数の個数: 40

約数和(自身を含む): 479366640

約数和(自身を除く): 257385536

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 272, 304, 323, 646, 1292, 2584, 5168, 42953, 85906, 171812, 343624, 687248, 730201, 816107, 1460402, 1632214, 2920804, 3264428, 5841608, 6528856, 11683216, 13057712, 13873819, 27747638, 55495276, 110990552, 221981104]

約数ペア:

[(1, 221981104), (2, 110990552), (4, 55495276), (8, 27747638), (16, 13873819), (17, 13057712), (19, 11683216), (34, 6528856), (38, 5841608), (68, 3264428), (76, 2920804), (136, 1632214), (152, 1460402), (272, 816107), (304, 730201), (323, 687248), (646, 343624), (1292, 171812), (2584, 85906), (5168, 42953)]