20913648

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{929}}^1$

素因数の和:1014

約数の個数: 80

約数和(自身を含む): 62734080

約数和(自身を除く): 41820432

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 67, 84, 112, 134, 168, 201, 268, 336, 402, 469, 536, 804, 929, 938, 1072, 1407, 1608, 1858, 1876, 2787, 2814, 3216, 3716, 3752, 5574, 5628, 6503, 7432, 7504, 11148, 11256, 13006, 14864, 19509, 22296, 22512, 26012, 39018, 44592, 52024, 62243, 78036, 104048, 124486, 156072, 186729, 248972, 312144, 373458, 435701, 497944, 746916, 871402, 995888, 1307103, 1493832, 1742804, 2614206, 2987664, 3485608, 5228412, 6971216, 10456824, 20913648]

約数ペア:

[(1, 20913648), (2, 10456824), (3, 6971216), (4, 5228412), (6, 3485608), (7, 2987664), (8, 2614206), (12, 1742804), (14, 1493832), (16, 1307103), (21, 995888), (24, 871402), (28, 746916), (42, 497944), (48, 435701), (56, 373458), (67, 312144), (84, 248972), (112, 186729), (134, 156072), (168, 124486), (201, 104048), (268, 78036), (336, 62243), (402, 52024), (469, 44592), (536, 39018), (804, 26012), (929, 22512), (938, 22296), (1072, 19509), (1407, 14864), (1608, 13006), (1858, 11256), (1876, 11148), (2787, 7504), (2814, 7432), (3216, 6503), (3716, 5628), (3752, 5574)]