21947884

素因数分解:

$2^2\times 7^3\times {\mathrm{17}}^1\times {\mathrm{941}}^1$

素因数の和:983

約数の個数: 48

約数和(自身を含む): 47476800

約数和(自身を除く): 25528916

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 49, 68, 98, 119, 196, 238, 343, 476, 686, 833, 941, 1372, 1666, 1882, 3332, 3764, 5831, 6587, 11662, 13174, 15997, 23324, 26348, 31994, 46109, 63988, 92218, 111979, 184436, 223958, 322763, 447916, 645526, 783853, 1291052, 1567706, 3135412, 5486971, 10973942, 21947884]

約数ペア:

[(1, 21947884), (2, 10973942), (4, 5486971), (7, 3135412), (14, 1567706), (17, 1291052), (28, 783853), (34, 645526), (49, 447916), (68, 322763), (98, 223958), (119, 184436), (196, 111979), (238, 92218), (343, 63988), (476, 46109), (686, 31994), (833, 26348), (941, 23324), (1372, 15997), (1666, 13174), (1882, 11662), (3332, 6587), (3764, 5831)]