21983456

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{173}}^1$

素因数の和:232

約数の個数: 72

約数和(自身を含む): 50118264

約数和(自身を除く): 28134808

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 76, 88, 152, 173, 176, 209, 304, 346, 352, 361, 418, 608, 692, 722, 836, 1384, 1444, 1672, 1903, 2768, 2888, 3287, 3344, 3806, 3971, 5536, 5776, 6574, 6688, 7612, 7942, 11552, 13148, 15224, 15884, 26296, 30448, 31768, 36157, 52592, 60896, 62453, 63536, 72314, 105184, 124906, 127072, 144628, 249812, 289256, 499624, 578512, 686983, 999248, 1157024, 1373966, 1998496, 2747932, 5495864, 10991728, 21983456]

約数ペア:

[(1, 21983456), (2, 10991728), (4, 5495864), (8, 2747932), (11, 1998496), (16, 1373966), (19, 1157024), (22, 999248), (32, 686983), (38, 578512), (44, 499624), (76, 289256), (88, 249812), (152, 144628), (173, 127072), (176, 124906), (209, 105184), (304, 72314), (346, 63536), (352, 62453), (361, 60896), (418, 52592), (608, 36157), (692, 31768), (722, 30448), (836, 26296), (1384, 15884), (1444, 15224), (1672, 13148), (1903, 11552), (2768, 7942), (2888, 7612), (3287, 6688), (3344, 6574), (3806, 5776), (3971, 5536)]