21999530

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:196

約数の個数: 96

約数和(自身を含む): 51710400

約数和(自身を除く): 29710870

約数列:

[1, 2, 5, 7, 10, 14, 17, 19, 34, 35, 38, 49, 70, 85, 95, 98, 119, 133, 139, 170, 190, 238, 245, 266, 278, 323, 490, 595, 646, 665, 695, 833, 931, 973, 1190, 1330, 1390, 1615, 1666, 1862, 1946, 2261, 2363, 2641, 3230, 4165, 4522, 4655, 4726, 4865, 5282, 6811, 8330, 9310, 9730, 11305, 11815, 13205, 13622, 15827, 16541, 18487, 22610, 23630, 26410, 31654, 33082, 34055, 36974, 44897, 68110, 79135, 82705, 89794, 92435, 115787, 129409, 158270, 165410, 184870, 224485, 231574, 258818, 314279, 448970, 578935, 628558, 647045, 1157870, 1294090, 1571395, 2199953, 3142790, 4399906, 10999765, 21999530]

約数ペア:

[(1, 21999530), (2, 10999765), (5, 4399906), (7, 3142790), (10, 2199953), (14, 1571395), (17, 1294090), (19, 1157870), (34, 647045), (35, 628558), (38, 578935), (49, 448970), (70, 314279), (85, 258818), (95, 231574), (98, 224485), (119, 184870), (133, 165410), (139, 158270), (170, 129409), (190, 115787), (238, 92435), (245, 89794), (266, 82705), (278, 79135), (323, 68110), (490, 44897), (595, 36974), (646, 34055), (665, 33082), (695, 31654), (833, 26410), (931, 23630), (973, 22610), (1190, 18487), (1330, 16541), (1390, 15827), (1615, 13622), (1666, 13205), (1862, 11815), (1946, 11305), (2261, 9730), (2363, 9310), (2641, 8330), (3230, 6811), (4165, 5282), (4522, 4865), (4655, 4726)]