18003412

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{787}}^1$

素因数の和:860

約数の個数: 48

約数和(自身を含む): 38832640

約数和(自身を除く): 20829228

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 43, 76, 86, 133, 172, 266, 301, 532, 602, 787, 817, 1204, 1574, 1634, 3148, 3268, 5509, 5719, 11018, 11438, 14953, 22036, 22876, 29906, 33841, 59812, 67682, 104671, 135364, 209342, 236887, 418684, 473774, 642979, 947548, 1285958, 2571916, 4500853, 9001706, 18003412]

約数ペア:

[(1, 18003412), (2, 9001706), (4, 4500853), (7, 2571916), (14, 1285958), (19, 947548), (28, 642979), (38, 473774), (43, 418684), (76, 236887), (86, 209342), (133, 135364), (172, 104671), (266, 67682), (301, 59812), (532, 33841), (602, 29906), (787, 22876), (817, 22036), (1204, 14953), (1574, 11438), (1634, 11018), (3148, 5719), (3268, 5509)]