21423976

素因数分解:

$2^3\times 7^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:135

約数の個数: 96

約数和(自身を含む): 50561280

約数和(自身を除く): 29137304

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 41, 43, 49, 56, 62, 82, 86, 98, 124, 164, 172, 196, 217, 248, 287, 301, 328, 344, 392, 434, 574, 602, 868, 1148, 1204, 1271, 1333, 1519, 1736, 1763, 2009, 2107, 2296, 2408, 2542, 2666, 3038, 3526, 4018, 4214, 5084, 5332, 6076, 7052, 8036, 8428, 8897, 9331, 10168, 10664, 12152, 12341, 14104, 16072, 16856, 17794, 18662, 24682, 35588, 37324, 49364, 54653, 62279, 65317, 71176, 74648, 86387, 98728, 109306, 124558, 130634, 172774, 218612, 249116, 261268, 345548, 382571, 437224, 498232, 522536, 691096, 765142, 1530284, 2677997, 3060568, 5355994, 10711988, 21423976]

約数ペア:

[(1, 21423976), (2, 10711988), (4, 5355994), (7, 3060568), (8, 2677997), (14, 1530284), (28, 765142), (31, 691096), (41, 522536), (43, 498232), (49, 437224), (56, 382571), (62, 345548), (82, 261268), (86, 249116), (98, 218612), (124, 172774), (164, 130634), (172, 124558), (196, 109306), (217, 98728), (248, 86387), (287, 74648), (301, 71176), (328, 65317), (344, 62279), (392, 54653), (434, 49364), (574, 37324), (602, 35588), (868, 24682), (1148, 18662), (1204, 17794), (1271, 16856), (1333, 16072), (1519, 14104), (1736, 12341), (1763, 12152), (2009, 10664), (2107, 10168), (2296, 9331), (2408, 8897), (2542, 8428), (2666, 8036), (3038, 7052), (3526, 6076), (4018, 5332), (4214, 5084)]