18949203

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1361}}^1$

素因数の和:1404

約数の個数: 48

約数和(自身を含む): 35695296

約数和(自身を除く): 16746093

約数列:

[1, 3, 7, 9, 13, 17, 21, 39, 51, 63, 91, 117, 119, 153, 221, 273, 357, 663, 819, 1071, 1361, 1547, 1989, 4083, 4641, 9527, 12249, 13923, 17693, 23137, 28581, 53079, 69411, 85743, 123851, 159237, 161959, 208233, 300781, 371553, 485877, 902343, 1114659, 1457631, 2105467, 2707029, 6316401, 18949203]

約数ペア:

[(1, 18949203), (3, 6316401), (7, 2707029), (9, 2105467), (13, 1457631), (17, 1114659), (21, 902343), (39, 485877), (51, 371553), (63, 300781), (91, 208233), (117, 161959), (119, 159237), (153, 123851), (221, 85743), (273, 69411), (357, 53079), (663, 28581), (819, 23137), (1071, 17693), (1361, 13923), (1547, 12249), (1989, 9527), (4083, 4641)]