19171568

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1511}}^1$

素因数の和:1593

約数の個数: 40

約数和(自身を含む): 40684896

約数和(自身を除く): 21513328

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 61, 104, 122, 208, 244, 488, 793, 976, 1511, 1586, 3022, 3172, 6044, 6344, 12088, 12688, 19643, 24176, 39286, 78572, 92171, 157144, 184342, 314288, 368684, 737368, 1198223, 1474736, 2396446, 4792892, 9585784, 19171568]

約数ペア:

[(1, 19171568), (2, 9585784), (4, 4792892), (8, 2396446), (13, 1474736), (16, 1198223), (26, 737368), (52, 368684), (61, 314288), (104, 184342), (122, 157144), (208, 92171), (244, 78572), (488, 39286), (793, 24176), (976, 19643), (1511, 12688), (1586, 12088), (3022, 6344), (3172, 6044)]