21911368

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{367}}^1\times {\mathrm{439}}^1$

素因数の和:829

約数の個数: 32

約数和(自身を含む): 43718400

約数和(自身を除く): 21807032

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 367, 439, 734, 878, 1468, 1756, 2936, 3512, 6239, 7463, 12478, 14926, 24956, 29852, 49912, 59704, 161113, 322226, 644452, 1288904, 2738921, 5477842, 10955684, 21911368]

約数ペア:

[(1, 21911368), (2, 10955684), (4, 5477842), (8, 2738921), (17, 1288904), (34, 644452), (68, 322226), (136, 161113), (367, 59704), (439, 49912), (734, 29852), (878, 24956), (1468, 14926), (1756, 12478), (2936, 7463), (3512, 6239)]