20421752

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{1097}}^1$

素因数の和:1295

約数の個数: 32

約数和(自身を含む): 41504400

約数和(自身を除く): 21082648

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 179, 358, 716, 1097, 1432, 2194, 2327, 4388, 4654, 8776, 9308, 14261, 18616, 28522, 57044, 114088, 196363, 392726, 785452, 1570904, 2552719, 5105438, 10210876, 20421752]

約数ペア:

[(1, 20421752), (2, 10210876), (4, 5105438), (8, 2552719), (13, 1570904), (26, 785452), (52, 392726), (104, 196363), (179, 114088), (358, 57044), (716, 28522), (1097, 18616), (1432, 14261), (2194, 9308), (2327, 8776), (4388, 4654)]