19874288

素因数分解:

$2^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2909}}^1$

素因数の和:2985

約数の個数: 40

約数和(自身を含む): 44744160

約数和(自身を除く): 24869872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 61, 112, 122, 244, 427, 488, 854, 976, 1708, 2909, 3416, 5818, 6832, 11636, 20363, 23272, 40726, 46544, 81452, 162904, 177449, 325808, 354898, 709796, 1242143, 1419592, 2484286, 2839184, 4968572, 9937144, 19874288]

約数ペア:

[(1, 19874288), (2, 9937144), (4, 4968572), (7, 2839184), (8, 2484286), (14, 1419592), (16, 1242143), (28, 709796), (56, 354898), (61, 325808), (112, 177449), (122, 162904), (244, 81452), (427, 46544), (488, 40726), (854, 23272), (976, 20363), (1708, 11636), (2909, 6832), (3416, 5818)]