21967264

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3671}}^1$

素因数の和:3709

約数の個数: 48

約数和(自身を含む): 49968576

約数和(自身を除く): 28001312

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 68, 88, 136, 176, 187, 272, 352, 374, 544, 748, 1496, 2992, 3671, 5984, 7342, 14684, 29368, 40381, 58736, 62407, 80762, 117472, 124814, 161524, 249628, 323048, 499256, 646096, 686477, 998512, 1292192, 1372954, 1997024, 2745908, 5491816, 10983632, 21967264]

約数ペア:

[(1, 21967264), (2, 10983632), (4, 5491816), (8, 2745908), (11, 1997024), (16, 1372954), (17, 1292192), (22, 998512), (32, 686477), (34, 646096), (44, 499256), (68, 323048), (88, 249628), (136, 161524), (176, 124814), (187, 117472), (272, 80762), (352, 62407), (374, 58736), (544, 40381), (748, 29368), (1496, 14684), (2992, 7342), (3671, 5984)]